CBSE 10TH Class

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CBSE 10TH Science

 

Science

Class X

(CODE NO:086/90)

COURSE STRUCTURE CLASS X

FIRST TERM MARKS-80
UNITS MARKS
I   Chemical Substances

 

Chemical reaction; Acids, bases and salts, Metals and Non Metal

29

 

S

II  World of living

 

Life process; control and coordination in animals and plants

19
III Effects of current

 

Magnetic effects of currents

26
IV Natural Resources

 

Sources of Energy

06
TOTAL 80
 
SECOND TERM MARKS-80
UNITS MARKS
I   Chemical Substances

 

Carbon compounds; Periodic classification of elements

21
II  World of living

 

Reroduction; Heridity and evolution

27
III Natural Phenomena 26
IV Natural Resources

 

Conservation of natural resources; the regional environment; our environment

06
TOTAL 80

Science (Chemistry , Physics , Biology ) Syllabus 2010 - CBSE Class X

COURSE STRUCTURE

CLASS X (Theory)

One Paper Time : 21/2 hours Marks : 60

Unit Marks

I. Chemical Substances 18

II. World of living 16

III. Effects of Current 10

IV. Light 8

V. Natural Resources 8

Total 60

Theme : Materials (55 Periods)

Unit 1 : Chemical Substances - Nature and Behaviour

Acids, bases and salts : General properties, examples and uses, concept of pH scale, importance of pH in  everyday life; preparation and uses of sodium hydroxide, Bleaching powder, Baking soda, washing soda and Plaster of Paris.

Chemical reactions : Chemical Equation, Types of chemical reactions : combination, decomposition, displacement,   double displacement, precipitation, neutralization, oxidation and reduction in terms of gain and loss of oxygen and  hydrogen.

Metals and non metals : General properties of Metals and Non-metals, reactivity series, Formation and properties of ionic compounds, Basic Metallurgical processes, corrosion and its prevention.

Carbon Compounds : Covalent bonding in carbon compounds. Versatile nature of carbon, Nomenclature of carbon compounds, Functional groups, difference between saturated hydrocarbons and unsaturated hydrocarbons, Ethanol and Ethanoic acid (only properties and uses), soaps and detergents.

Periodic classification of elements : Modern Periodic table, Gradation in Properties.

Theme : The world of the living (50 Periods)

Unit 2 : World of Living

Life Processes : "living" things; Basic concept of nutrition, respiration, transport and excretion in plants and animals.

Control and Co-ordination in animals and plants : Tropic movements in plants; Introduction to plant hormones; control and co-ordination in animals : voluntary, involuntary and reflex action, nervous system; chemical co-ordination : animal hormones.

Reproduction : Reproduction in animal and plants (asxual and sxual). Need for and methods of family planning. Safe sx vs HIV/AIDS. Child bearing and women's health.

Heridity and evolution : Heridity; Origin of life : brief introduction; Basic concepts of evolution.

Theme : How things work. (35 Periods)

Unit 3 : Effects of Current

Potential difference and electric current. Ohm's law; Resistance, Factors on which the resistance of a conductor depends. Series combination of resistors, parallel combination of resistors; Heating effect of Electric current; Electric Power, Inter relation between P, V, I and R.

Magnets : Magnetic field, field lines, field due to a current carrying wire, field due to current carrying coil or  solenoid; Force on current carrying conductor, Fleming's left hand rule. Electro magnetic induction. Induced potential  difference, Induced current. Fleming's Right Hand Rule, Direct current. Alternating current; frequency of AC. Advantage  of AC over DC. Domestic electric circuits.

Theme : Natural Phenomena (20 Periods)

Unit 4 : Reflection of light at curved surfaces, Images formed by spherical mirrors, centre of curvature, principalaxis, principal focus, focal length. Mirror Formula (Derivation not required), Magnification. Refraction; laws of refraction, refractive index.Refraction of light by spherical lens, Image formed by spherical lenses, Lens formula (Derivation not required),Magnification. Power of a lens; Functioning of a lens in human eye, problems of vision and remedies, applications of
spherical mirrors and lenses.Refraction of light through a prism, dispersion of light, scattering of light, applications in daily life.

Theme : Natural Resources (20 Periods)

Unit 5 : Conservation of natural resources : Management of natural resources. Conservation and judicious use of natural resources. Forest and wild life, coal and petroleum conservation. Examples of People's participationfor conservation of natural resources.

The Regional environment : Big dams : advantages and limitations; alternatives if any. Water harvesting. Sustainability  of natural resources.

Sources of energy : Different forms of energy, conventional and non-conventional sources of energy: fossil fuels, solar energy; biogas; wind, water and tidal energy; nuclear. Renewable versus non-renewable sources.

Our Environment : Eco-system, Environmental problems, their solutions. Biodegradable and non-biodegradable, substances ozone depletion.

PRACTICALS

LIST OF EXPERIMENTS

Marks : 40 (20 + 20 )

1. To find the pH of the following samples by using pH paper/universal indicator.

i) Dilute Hydrochloric acid

ii) Dilute NaOH solution

iii) Dilute Ethanoic acid solution

iv) Lemon juice

v) Water

vi) Dilute Sodium Bicarbonate Solution.

2. To study the properties of acids and bases HCl & NaOH by their reaction with

i) Litmus solution (Blue/Red)

ii) Zinc metal

iii) Solid Sodium Carbonate

3. To determine the focal length of  72

a) Concave mirror

b) Convex lens by obtaining the image of a distant object.

4. To trace the path of a ray of light passing through a rectangular glass slab for different angles of incidence. Measure the angle of incidence, angle of refraction, angle of emergence and interpret the result.

5. To study the dependence of current (I) on the potential difference (V) across a resistor and determine its resistance. Also plot a graph between V and I.

6. To determine the equivalent resistance of two resistors when connected in series.

7. To determine the equivalent resistance of two resistors when connected in parallel.

8. To prepare a temporary mount of a leaf peel to show stomata.

9. To show experimentally that light is necessary for photosynthesis.

10. To show experimentally that carbon dioxide is given out during respiration.

11. To study (a) binary fission in Amoeba and (b) budding in yeast with the help of prepared slides.

12. To determine the percentage of water absorbed by raisins.

13. To perform and observe the following reactions and classify them into:

i) Combination Reaction

ii) Decomposition Reaction

iii) Displacement Reaction

iv) Double Displacement Reaction

1. Action of water on quick lime.

2. Action of heat on Ferrous Sulphate crystals

3. Iron Nails kept in copper sulphate solution

4. Reaction between Sodium sulphate and Barium chloride solutions.

14. a) To observe the action of Zn, Fe, Cu and Al metals on the following salt solutions.

i) ZnSO4 (aq.)

ii) FeSO4 (aq.)

iii) CuSO4 (aq.)

iv) Al2 (SO4)3 (aq.)

b) Arrange Zn, Fe, Cu and Al metals in the decreasing order of reactivity based on the above result.

15. To study the following properties of acetic acid (ethanoic acid) :

73

i) odour

ii) solubility in wate

iii) effect on litmus

iv) reaction with sodium bicarbonate

SCHEME OF EVALUATION :

External Examination (to be conducted by the Board through multiple choice type written test) 20 Marks

School-based hands-on practical examination. 20 Marks

RECOMMENDED BOOKS :

Science - Textbook for class IX - NCERT Publication

Science - Textbook for class X - NCERT Publication

Assessment of Practical Skills in Science - Class IX - CBSE Publication

Assessment of Practical Skills in Science - Class X - CBSE Publication

CBSE Science Chap 1 - Chemical Reactions and Equations

Chapter Summary

 

  • A complete chemical equation represents the reactants, products and their physical states symbolically.
  •  A chemical equation is balanced so that the numbers of atoms of each type involved in a chemical reaction are the same on the reactant and product sides of the equation. Equations must always be balanced.
  • In a combination reaction two or more substances combine to form a new single substance.
  • Decomposition reactions are opposite to combination reactions. In a decomposition reaction, a single substance decomposes to give two or more substances.
  • Reactions in which heat is given out along with the products are called exothermic reactions.
  •  Reactions in which energy is absorbed are known as endothermic reactions.
  • When an element displaces another element from its compound, a displacement reaction occurs.
  • Two different atoms or groups of atoms (ions) are exchanged in double displacement reactions.
  • Precipitation reactions produce insoluble salts.
  •  Reactions also involve the gain or loss of oxygen or hydrogen by substances.
  • Oxidation is the gain of oxygen or loss of hydrogen. Reduction is the loss of oxygen or gain of hydrogen.

NCERT Book Solutions


 

 

NCERT Solutions - Chemical Reactions and Equations - Page 14 - Q1

Chap 1 - Chemical Reactions and Equations - Page 6 - Q2

Chap 1 - Chemical Reactions and Equations - Page 6 - Q3

Chap 1 - Chemical Reactions and Equations - Page 6 - Q1

 

 


 

NCERT Solutions - Chemical Reactions and Equations - Page 10 - Q1

NCERT Solutions - Chemical Reactions and Equations - Page 10 - Q2

NCERT Solutions - Chemical Reactions and Equations - Page 13 - Q1

NCERT Solutions - Chemical Reactions and Equations - Page 13 - Q2

NCERT Solutions - Chemical Reactions and Equations - Page 13 - Q3

NCERT Solutions - Chemical Reactions and Equations - Page 14 - Q2

NCERT Solutions - Chemical Reactions and Equations - Page 15 - Q10

NCERT Solutions - Chemical Reactions and Equations - Page 15 - Q11

NCERT Solutions - Chemical Reactions and Equations - Page 15 - Q3

NCERT Solutions - Chemical Reactions and Equations - Page 15 - Q4

NCERT Solutions - Chemical Reactions and Equations - Page 15 - Q5

NCERT Solutions - Chemical Reactions and Equations - Page 15 - Q6

NCERT Solutions - Chemical Reactions and Equations - Page 15 - Q7

NCERT Solutions - Chemical Reactions and Equations - Page 15 - Q8

NCERT Solutions - Chemical Reactions and Equations - Page 15 - Q9

NCERT Solutions - Chemical Reactions and Equations - Page 16 - Q12

NCERT Solutions - Chemical Reactions and Equations - Page 16 - Q13

NCERT Solutions - Chemical Reactions and Equations - Page 16 - Q14

NCERT Solutions - Chemical Reactions and Equations - Page 16 - Q15

NCERT Solutions - Chemical Reactions and Equations - Page 16 - Q16

NCERT Solutions - Chemical Reactions and Equations - Page 16 - Q17

NCERT Solutions - Chemical Reactions and Equations - Page 16 - Q18

NCERT Solutions - Chemical Reactions and Equations - Page 16 - Q19

NCERT Solutions - Chemical Reactions and Equations - Page 16 - Q20

CBSE Science Chap 2 - Acids, Bases and Salts

Chapter Summary


  • Acid-base indicators are dyes or mixtures of dyes which are used to indicate the presence of acids and bases.
  • Acidic nature of a substance is due to the formation of H+(aq) ions in solution. Formation of OH–(aq) ions in solution is responsible for the basic nature of a substance.
  •  When an acid reacts with a metal, hydrogen gas is evolved and a corresponding salt is formed.
  • When a base reacts with a metal, along with the evolution of hydrogen gas a salt is formed which has a negative ion composed of the metal and oxygen.
  • When an acid reacts with a metal carbonate or metal hydrogencarbonate, it gives the corresponding salt, carbon dioxide gas and water.
  • Acidic and basic solutions in water conduct electricity because they produce hydrogen and hydroxide ions respectively.
  • The strength of an acid or an alkali can be tested by using a scale called the pH scale (0-14) which gives the measure of hydrogen ion concentration in a solution.
  • A neutral solution has a pH of exactly 7, while an acisolution has a pH less than 7 and a basic solution a pH more than 7.
  • Living beings carry out their metabolic activities within an optimal pH range.
  • Mixing concentrated acids or bases with water is a highly exothermic process.
  • Acids and bases neutralise each other to form corresponding salts and water.
  • Water of crystallisation is the fixed number of water molecules chemically attached to each formula unit of a salt in its crystalline form.
  • Salts have various uses in everyday life and in industries.

              NCERT  Book Solutions


 

NCERT Solutions - Acids , Bases and Salts - Page 18 - Q1

NCERT Solutions - Acids , Bases and Salts - Page 22 - Q1

NCERT Solutions - Acids , Bases and Salts - Page 22 - Q2

NCERT Solutions - Acids , Bases and Salts - Page 22 - Q3

NCERT Solutions - Acids , Bases and Salts - Page 25 - Q1

NCERT Solutions - Acids , Bases and Salts - Page 25 - Q2

NCERT Solutions - Acids , Bases and Salts - Page 25 - Q3

NCERT Solutions - Acids , Bases and Salts - Page 25 - Q4

NCERT Solutions - Acids , Bases and Salts - Page 25 - Q5

NCERT Solutions - Acids , Bases and Salts - Page 25 - Q6

NCERT Solutions - Acids , Bases and Salts - Page 33 - Q1

NCERT Solutions - Acids , Bases and Salts - Page 33 - Q2

NCERT Solutions - Acids , Bases and Salts - Page 33 - Q3

NCERT Solutions - Acids , Bases and Salts - Page 33 - Q5

NCERT Solutions - Acids , Bases and Salts - Page 33- Q4

NCERT Solutions - Acids , Bases and Salts - Page 34 - Q1

NCERT Solutions - Acids , Bases and Salts - Page 34 - Q2

NCERT Solutions - Acids , Bases and Salts - Page 34 - Q3

NCERT Solutions - Acids , Bases and Salts - Page 34 - Q5

NCERT Solutions - Acids , Bases and Salts - Page 34 - Q6

NCERT Solutions - Acids , Bases and Salts - Page 34 - Q7

NCERT Solutions - Acids , Bases and Salts - Page 34- Q4

NCERT Solutions - Acids , Bases and Salts - Page 35- Q8

NCERT Solutions - Acids , Bases and Salts - Page 35- Q9

NCERT Solutions - Acids , Bases and Salts - Page 35 - Q10

NCERT Solutions - Acids , Bases and Salts - Page 35 - Q11

NCERT Solutions - Acids , Bases and Salts - Page 35 - Q12

NCERT Solutions - Acids , Bases and Salts - Page 35 - Q13

NCERT Solutions - Acids , Bases and Salts - Page 35 - Q14

NCERT Solutions - Acids , Bases and Salts - Page 35 - Q15

CBSE Science Chap 3 - Metals and Non-metals

Chapter Summary


  • Elements can be classified as metals and non-metals.
  • Metals are lustrous, malleable, ductile and are good conductors of heat and
  • electricity. They are solids at room temperature, except mercury which is a liquid.
  • Metals can form positive ions by losing electrons to non-metals.
  • Metals combine with oxygen to form basic oxides. Aluminium oxide and zinc oxide show the properties of both basic as well as acidic oxides. These oxides are known  as amphoteric oxides.
  • Different metals have different reactivities with water and dilute acids.
  • A list of common metals arranged in order of their decreasing reactivity is known as an activity series.
  • Metals above hydrogen in the Activity series can displace hydrogen from dilute acids. A more reactive metal displaces a less reactive metal from its salt solution.
  • Metals occur in nature as free elements or in the form of their compounds.
  • The extraction of metals from their ores and then refining them for use is known as metallurgy.
  • An alloy is a homogeneous mixture of two or more metals, or a metal and a non-metal.
  • The surface of some metals, such as iron, is corroded when they are exposed to moist air for a long period of time. This phenomenon is known as corrosion.
  • Non-metals have properties opposite to that of metals. They are neither malleable nor ductile. They are bad conductors of heat and electricity, except for graphite, which conducts electricity.
  • Non-metals form negatively charged ions by gaining electrons when reacting with metals.
  • Non-metals form oxides which are either acidic or neutral.
  • Non-metals do not displace hydrogen from dilute acids. They react with hydrogen to form hydrides.

NCERT Book Solutions


 

CBSE Science Chap 3 - Metals and Non-metals - P40 - Q1

CBSE Science Chap 3 - Metals and Non-metals - P40 - Q2

CBSE Science Chap 3 - Metals and Non-metals - P46 - Q1

CBSE Science Chap 3 - Metals and Non-metals - P46 - Q2

CBSE Science Chap 3 - Metals and Non-metals - P46 - Q3

CBSE Science Chap 3 - Metals and Non-metals - P46 - Q4

CBSE Science Chap 3 - Metals and Non-metals - P46 - Q5

CBSE Science Chap 3 - Metals and Non-metals - P49 - Q1

CBSE Science Chap 3 - Metals and Non-metals - P49 - Q2

CBSE Science Chap 3 - Metals and Non-metals - P53 - Q1

CBSE Science Chap 3 - Metals and Non-metals - P53 - Q1

CBSE Science Chap 3 - Metals and Non-metals - P53 - Q2

CBSE Science Chap 3 - Metals and Non-metals - P53 - Q3

CBSE Science Chap 3 - Metals and Non-metals - P55 - Q1

CBSE Science Chap 3 - Metals and Non-metals - P55 - Q2

CBSE Science Chap 3 - Metals and Non-metals - P55 - Q3

CBSE Science Chap 3 - Metals and Non-metals - P56 - Q1

CBSE Science Chap 3 - Metals and Non-metals - P56 - Q2

CBSE Science Chap 3 - Metals and Non-metals - P56 - Q3

CBSE Science Chap 3 - Metals and Non-metals - P56 - Q4

CBSE Science Chap 3 - Metals and Non-metals - P56 - Q5

CBSE Science Chap 3 - Metals and Non-metals - P56 - Q6

CBSE Science Chap 3 - Metals and Non-metals - P56 - Q7

CBSE Science Chap 3 - Metals and Non-metals - P57 - Q8

CBSE Science Chap 3 - Metals and Non-metals - P57 - Q9

CBSE Science Chap 3 - Metals and Non-metals - P57 - Q10

CBSE Science Chap 3 - Metals and Non-metals - P57 - Q11

CBSE Science Chap 3 - Metals and Non-metals - P57 - Q12

CBSE Science Chap 3 - Metals and Non-metals - P57 - Q13

CBSE Science Chap 4 - Carbon and its Compounds

Chapter Summary


  • Carbon is a versatile element that forms the basis for all living organisms and manyof the things we use.
  • This large variety of compounds is formed by carbon because of its tetravalency and the property of catenation that it exhibits.
  • Covalent bonds are formed by the sharing of electrons between two atoms so that both can achieve a completely filled outermost shell.
  • Carbon forms covalent bonds with itself and other elements such as hydrogen ,oxygen, sulphur, nitrogen and chlorine.
  • Carbon also forms compounds containing double and triple bonds between carbon atoms. These carbon chains may be in the form of straight chains, branched chains or rings.
  • The ability of carbon to form chains gives rise to a homologous series of compounds  which the same functional group is attached to carbon chains of different lengths.
  • The functional groups such as alcohols, aldehydes, ketones and carboxylic acids bestow characteristic properties to the carbon compounds that contain them.
  • Carbon and its compounds are some of our major sources of fuels.
  • Ethanol and ethanoic acid are carbon compounds of importance in our daily lives.
  • The action of soaps and detergents is based on the presence of both hydrophobic and hydrophilic groups in the molecule and this helps to emulsify the oily dirt and hence its removal.

NCERT Book Solutions


 

CBSE Science Chap 4 - Carbon and its Compounds - P61 - Q1

CBSE Science Chap 4 - Carbon and its Compounds - P61 - Q2

CBSE Science Chap 4 - Carbon and its Compounds - P68 - Q1

CBSE Science Chap 4 - Carbon and its Compounds - P68 - Q2

CBSE Science Chap 4 - Carbon and its Compounds - P68 - Q3

CBSE Science Chap 4 - Carbon and its Compounds - P69 - Q4

CBSE Science Chap 4 - Carbon and its Compounds - P69 - Q5

CBSE Science Chap 4 - Carbon and its Compounds - P71 - Q1

CBSE Science Chap 4 - Carbon and its Compounds - P71 - Q2

CBSE Science Chap 4 - Carbon and its Compounds - P74 - Q1

CBSE Science Chap 4 - Carbon and its Compounds - P74 - Q2

CBSE Science Chap 4 - Carbon and its Compounds - P76 - Q1

CBSE Science Chap 4 - Carbon and its Compounds - P76 - Q2

CBSE Science Chap 4 - Carbon and its Compounds - P77 - Q1

CBSE Science Chap 4 - Carbon and its Compounds - P77 - Q2

CBSE Science Chap 4 - Carbon and its Compounds - P77 - Q3

CBSE Science Chap 4 - Carbon and its Compounds - P78 - Q4

CBSE Science Chap 4 - Carbon and its Compounds - P78 - Q5

CBSE Science Chap 4 - Carbon and its Compounds - P78 - Q6

CBSE Science Chap 4 - Carbon and its Compounds - P78 - Q7

CBSE Science Chap 4 - Carbon and its Compounds - P78 - Q8

CBSE Science Chap 4 - Carbon and its Compounds - P78 - Q9

CBSE Science Chap 4 - Carbon and its Compounds - P78 - Q10

CBSE Science Chap 4 - Carbon and its Compounds - P78 - Q11

CBSE Science Chap 4 - Carbon and its Compounds - P78 - Q12

CBSE Science Chap 4 - Carbon and its Compounds - P78 - Q13

CBSE Science Chap 4 - Carbon and its Compounds - P78 - Q14

CBSE Science Chap 4 - Carbon and its Compounds - P78 - Q15

Chap 5 - Periodic Classification of Elements

Chap 5 - Periodic Classification of Elements - P81 - Q1

Chap 5 - Periodic Classification of Elements - P81 - Q2

Chap 5 - Periodic Classification of Elements - P81 - Q3

Chap 5 - Periodic Classification of Elements - P85 - Q1

Chap 5 - Periodic Classification of Elements - P85 - Q2

Chap 5 - Periodic Classification of Elements - P85 - Q3

Chap 5 - Periodic Classification of Elements - P85 - Q4

Chap 5 - Periodic Classification of Elements - P90 - Q1

Chap 5 - Periodic Classification of Elements - P90 - Q2

Chap 5 - Periodic Classification of Elements - P90 - Q3

Chap 5 - Periodic Classification of Elements - P90 - Q4

Chap 5 - Periodic Classification of Elements - P90 - Q5

Chap 5 - Periodic Classification of Elements - P90 - Q6

Chap 5 - Periodic Classification of Elements - P91 - Q1

Chap 5 - Periodic Classification of Elements - P91 - Q2

Chap 5 - Periodic Classification of Elements - P91 - Q3

Chap 5 - Periodic Classification of Elements - P91 - Q4

Chap 5 - Periodic Classification of Elements - P91 - Q5

Chap 5 - Periodic Classification of Elements - P92 - Q6

Chap 5 - Periodic Classification of Elements - P92 - Q7

Chap 5 - Periodic Classification of Elements - P92 - Q8

Chap 5 - Periodic Classification of Elements - P92 - Q9

Chap 5 - Periodic Classification of Elements - P92 - Q10

Chap 6 - Life Processes

Chap 6 - Life Processes - P95 - Q1

Chap 6 - Life Processes - P95 - Q2

Chap 6 - Life Processes - P95 - Q3

Chap 6 - Life Processes - P95 - Q4

Chap 6 - Life Processes - P101 - Q1

Chap 6 - Life Processes - P101 - Q2

Chap 6 - Life Processes - P101 - Q3

Chap 6 - Life Processes - P101 - Q4

Chap 6 - Life Processes - P101 - Q5

Chap 6 - Life Processes - P105 - Q1

Chap 6 - Life Processes - P105 - Q2

Chap 6 - Life Processes - P105 - Q3

Chap 6 - Life Processes - P105 - Q4

Chap 6 - Life Processes - P110 - Q1

Chap 6 - Life Processes - P110 - Q1

Chap 6 - Life Processes - P110 - Q2

Chap 6 - Life Processes - P110 - Q3

Chap 6 - Life Processes - P110 - Q4

Chap 6 - Life Processes - P110 - Q5

Chap 6 - Life Processes - P112 - Q1

Chap 6 - Life Processes - P112 - Q2

Chap 6 - Life Processes - P112 - Q3

Chap 6 - Life Processes - P113 - Q1

Chap 6 - Life Processes - P113 - Q2

Chap 6 - Life Processes - P113 - Q3

Chap 6 - Life Processes - P113 - Q4

Chap 6 - Life Processes - P113 - Q5

Chap 6 - Life Processes - P113 - Q6

Chap 6 - Life Processes - P113 - Q7

Chap 6 - Life Processes - P113 - Q8

Chap 6 - Life Processes - P113 - Q9

Chap 6 - Life Processes - P113 - Q10

Chap 6 - Life Processes - P113 - Q11

Chap 6 - Life Processes - P113 - Q12

Chap 6 - Life Processes - P113 - Q13

Chap 7 - Control and Coordination

Chap 7 - Control and Coordination - P119 - Q1

Chap 7 - Control and Coordination - P119 - Q2

Chap 7 - Control and Coordination - P119 - Q3

Chap 7 - Control and Coordination - P119 - Q4

Chap 7 - Control and Coordination - P119 - Q5

Chap 7 - Control and Coordination - P122 - Q1

Chap 7 - Control and Coordination - P122 - Q2

Chap 7 - Control and Coordination - P122 - Q3

Chap 7 - Control and Coordination - P122 - Q4

Chap 7 - Control and Coordination - P122 - Q5

Chap 7 - Control and Coordination - P125 - Q1

Chap 7 - Control and Coordination - P125 - Q1

Chap 7 - Control and Coordination - P125 - Q2

Chap 7 - Control and Coordination - P125 - Q2

Chap 7 - Control and Coordination - P125 - Q3

Chap 7 - Control and Coordination - P126 - Q3

Chap 7 - Control and Coordination - P126 - Q4

Chap 7 - Control and Coordination - P126 - Q5

Chap 7 - Control and Coordination - P126 - Q6

Chap 7 - Control and Coordination - P126 - Q7

Chap 7 - Control and Coordination - P126 - Q8

Chap 7 - Control and Coordination - P126 - Q9

Chap 7 - Control and Coordination - P126 - Q10

Chap 7 - Control and Coordination - P126 - Q11

Chap 7 - Control and Coordination - P126 - Q12

Chap 8 - How do Organisms Reproduce?

Chap 8 - How do Organisms Reproduce? - P128 - Q1

Chap 8 - How do Organisms Reproduce? - P128 - Q2

Chap 8 - How do Organisms Reproduce? - P133 - Q1

Chap 8 - How do Organisms Reproduce? - P133 - Q2

Chap 8 - How do Organisms Reproduce? - P133 - Q3

Chap 8 - How do Organisms Reproduce? - P133 - Q4

Chap 8 - How do Organisms Reproduce? - P133 - Q5

Chap 8 - How do Organisms Reproduce? - P140 - Q1

Chap 8 - How do Organisms Reproduce? - P140 - Q2

Chap 8 - How do Organisms Reproduce? - P140 - Q3

Chap 8 - How do Organisms Reproduce? - P140 - Q4

Chap 8 - How do Organisms Reproduce? - P140 - Q5

Chap 8 - How do Organisms Reproduce? - P141 - Q1

Chap 8 - How do Organisms Reproduce? - P141 - Q2

Chap 8 - How do Organisms Reproduce? - P141 - Q3

Chap 8 - How do Organisms Reproduce? - P141 - Q4

Chap 8 - How do Organisms Reproduce? - P141 - Q5

Chap 8 - How do Organisms Reproduce? - P141 - Q6

Chap 8 - How do Organisms Reproduce? - P141 - Q7

Chap 8 - How do Organisms Reproduce? - P141 - Q8

Chap 8 - How do Organisms Reproduce? - P141 - Q9

Chap 8 - How do Organisms Reproduce? - P141 - Q10

Chap 8 - How do Organisms Reproduce? - P141 - Q11

Chap 9 - Heredity and Evolution

Chap 9 - Heredity and Evolution - P143 - Q1

Chap 9 - Heredity and Evolution - P143 - Q2

Chap 9 - Heredity and Evolution - P147 - Q1

Chap 9 - Heredity and Evolution - P147 - Q2

Chap 9 - Heredity and Evolution - P147 - Q3

Chap 9 - Heredity and Evolution - P147 - Q4

Chap 9 - Heredity and Evolution - P150 - Q1

Chap 9 - Heredity and Evolution - P150 - Q2

Chap 9 - Heredity and Evolution - P150 - Q3

Chap 9 - Heredity and Evolution - P151 - Q1

Chap 9 - Heredity and Evolution - P151 - Q2

Chap 9 - Heredity and Evolution - P151 - Q3

Chap 9 - Heredity and Evolution - P156 - Q1

Chap 9 - Heredity and Evolution - P156 - Q2

Chap 9 - Heredity and Evolution - P156 - Q3

Chap 9 - Heredity and Evolution - P158 - Q1

Chap 9 - Heredity and Evolution - P158 - Q2

Chap 9 - Heredity and Evolution - P159 - Q1

Chap 9 - Heredity and Evolution - P159 - Q2

Chap 9 - Heredity and Evolution - P159 - Q3

Chap 9 - Heredity and Evolution - P159 - Q4

Chap 9 - Heredity and Evolution - P159 - Q5

Chap 9 - Heredity and Evolution - P159 - Q6

Chap 9 - Heredity and Evolution - P159 - Q7

Chap 9 - Heredity and Evolution - P159 - Q8

Chap 9 - Heredity and Evolution - P159 - Q9

Chap 9 - Heredity and Evolution - P159 - Q10

Chap 9 - Heredity and Evolution - P159 - Q11

Chap 9 - Heredity and Evolution - P159 - Q12

Chap 10 - Light – Reflection and Refraction

Chap 10 - Light – Reflection and Refraction - P168 - Q1

Chap 10 - Light – Reflection and Refraction - P168 - Q2

Chap 10 - Light – Reflection and Refraction - P168 - Q3

Chap 10 - Light – Reflection and Refraction - P168 - Q4

Chap 10 - Light – Reflection and Refraction - P171 - Q1

Chap 10 - Light – Reflection and Refraction - P171 - Q2

Chap 10 - Light – Reflection and Refraction - P176 - Q1

Chap 10 - Light – Reflection and Refraction - P176 - Q2

Chap 10 - Light – Reflection and Refraction - P176 - Q3

Chap 10 - Light – Reflection and Refraction - P176 - Q4

Chap 10 - Light – Reflection and Refraction - P176 - Q5

Chap 10 - Light – Reflection and Refraction - P184 - Q1

Chap 10 - Light – Reflection and Refraction - P184 - Q2

Chap 10 - Light – Reflection and Refraction - P184 - Q3

Chap 10 - Light – Reflection and Refraction - P185 - Q1

Chap 10 - Light – Reflection and Refraction - P185 - Q2

Chap 10 - Light – Reflection and Refraction - P185 - Q3

Chap 10 - Light – Reflection and Refraction - P185 - Q4

Chap 10 - Light – Reflection and Refraction - P186 - Q5

Chap 10 - Light – Reflection and Refraction - P186 - Q6

Chap 10 - Light – Reflection and Refraction - P186 - Q7

Chap 10 - Light – Reflection and Refraction - P186 - Q8

Chap 10 - Light – Reflection and Refraction - P186 - Q9

Chap 10 - Light – Reflection and Refraction - P186 - Q10

Chap 10 - Light – Reflection and Refraction - P186 - Q11

Chap 10 - Light – Reflection and Refraction - P186 - Q12

Chap 10 - Light – Reflection and Refraction - P186 - Q13

Chap 10 - Light – Reflection and Refraction - P186 - Q14

Chap 10 - Light – Reflection and Refraction - P186 - Q15

Chap 10 - Light – Reflection and Refraction - P186 - Q16

Chap 10 - Light – Reflection and Refraction - P186 - Q17

Chap 11 - Human Eye and Colourful World

Chap 11 - Human Eye and Colourful World - P190 - Q1

Chap 11 - Human Eye and Colourful World - P190 - Q2

Chap 11 - Human Eye and Colourful World - P190 - Q3

Chap 11 - Human Eye and Colourful World - P190 - Q4

Chap 11 - Human Eye and Colourful World - P197 - Q1

Chap 11 - Human Eye and Colourful World - P198 - Q2

Chap 11 - Human Eye and Colourful World - P198 - Q3

Chap 11 - Human Eye and Colourful World - P198 - Q4

Chap 11 - Human Eye and Colourful World - P198 - Q5

Chap 11 - Human Eye and Colourful World - P198 - Q6

Chap 11 - Human Eye and Colourful World - P198 - Q7

Chap 11 - Human Eye and Colourful World - P198 - Q8

Chap 11 - Human Eye and Colourful World - P198 - Q9

Chap 11 - Human Eye and Colourful World - P198 - Q10

Chap 11 - Human Eye and Colourful World - P198 - Q11

Chap 11 - Human Eye and Colourful World - P198 - Q12

Chap 11 - Human Eye and Colourful World - P198 - Q13

Chap 12 - Electricity

Chap 12 - Electricity - P200 - Q1

Chap 12 - Electricity - P200 - Q2

Chap 12 - Electricity - P200 - Q3

Chap 12 - Electricity - P202 - Q1

Chap 12 - Electricity - P202 - Q2

Chap 12 - Electricity - P202 - Q3

Chap 12 - Electricity - P209 - Q1

Chap 12 - Electricity - P209 - Q2

Chap 12 - Electricity - P209 - Q3

Chap 12 - Electricity - P209 - Q4

Chap 12 - Electricity - P209 - Q5

Chap 12 - Electricity - P213 - Q1

Chap 12 - Electricity - P213 - Q2

Chap 12 - Electricity - P216 - Q1

Chap 12 - Electricity - P216 - Q2

Chap 12 - Electricity - P216 - Q3

Chap 12 - Electricity - P216 - Q4

Chap 12 - Electricity - P216 - Q5

Chap 12 - Electricity - P218 - Q1

Chap 12 - Electricity - P218 - Q2

Chap 12 - Electricity - P218 - Q3

Chap 12 - Electricity - P220 - Q1

Chap 12 - Electricity - P220 - Q2

Chap 12 - Electricity - P221 - Q1

Chap 12 - Electricity - P221 - Q2

Chap 12 - Electricity - P221 - Q3

Chap 12 - Electricity - P221 - Q4

Chap 12 - Electricity - P221 - Q5

Chap 12 - Electricity - P221 - Q6

Chap 12 - Electricity - P221 - Q7

Chap 12 - Electricity - P221 - Q8

Chap 12 - Electricity - P221 - Q9

Chap 12 - Electricity - P221 - Q10

Chap 12 - Electricity - P221 - Q11

Chap 12 - Electricity - P221 - Q12

Chap 12 - Electricity - P221 - Q13

Chap 12 - Electricity - P221 - Q14

Chap 12 - Electricity - P222 - Q15

Chap 12 - Electricity - P222 - Q16

Chap 12 - Electricity - P222 - Q17

Chap 12 - Electricity - P222 - Q18

Chap 13 - Magnetic Effects of Electric Current

Chap 13 - Magnetic Effects of Electric Current - P224 - Q1

Chap 13 - Magnetic Effects of Electric Current - P228 - Q1

Chap 13 - Magnetic Effects of Electric Current - P228 - Q2

Chap 13 - Magnetic Effects of Electric Current - P228 - Q3

Chap 13 - Magnetic Effects of Electric Current - P229 - Q1

Chap 13 - Magnetic Effects of Electric Current - P229 - Q2

Chap 13 - Magnetic Effects of Electric Current - P230 - Q3

Chap 13 - Magnetic Effects of Electric Current - P231 - Q1

Chap 13 - Magnetic Effects of Electric Current - P232 - Q2

Chap 13 - Magnetic Effects of Electric Current - P232 - Q3

Chap 13 - Magnetic Effects of Electric Current - P233 - Q1

Chap 13 - Magnetic Effects of Electric Current - P233 - Q2

Chap 13 - Magnetic Effects of Electric Current - P233 - Q3

Chap 13 - Magnetic Effects of Electric Current - P236 - Q1

Chap 13 - Magnetic Effects of Electric Current - P237 - Q1

Chap 13 - Magnetic Effects of Electric Current - P237 - Q2

Chap 13 - Magnetic Effects of Electric Current - P237 - Q3

Chap 13 - Magnetic Effects of Electric Current - P237 - Q4

Chap 13 - Magnetic Effects of Electric Current - P238 - Q1

Chap 13 - Magnetic Effects of Electric Current - P238 - Q2

Chap 13 - Magnetic Effects of Electric Current - P238 - Q3

Chap 13 - Magnetic Effects of Electric Current - P240 - Q1

Chap 13 - Magnetic Effects of Electric Current - P240 - Q2

Chap 13 - Magnetic Effects of Electric Current - P240 - Q3

Chap 13 - Magnetic Effects of Electric Current - P240 - Q4

Chap 13 - Magnetic Effects of Electric Current - P240 - Q5

Chap 13 - Magnetic Effects of Electric Current - P240 - Q6

Chap 13 - Magnetic Effects of Electric Current - P240 - Q7

Chap 13 - Magnetic Effects of Electric Current - P241 - Q8

Chap 13 - Magnetic Effects of Electric Current - P241 - Q9

Chap 13 - Magnetic Effects of Electric Current - P241 - Q10

Chap 13 - Magnetic Effects of Electric Current - P241 - Q11

Chap 13 - Magnetic Effects of Electric Current - P241 - Q12

Chap 13 - Magnetic Effects of Electric Current - P241 - Q13

Chap 13 - Magnetic Effects of Electric Current - P241 - Q14

Chap 13 - Magnetic Effects of Electric Current - P241 - Q15

Chap 13 - Magnetic Effects of Electric Current - P241 - Q16

Chap 13 - Magnetic Effects of Electric Current - P241 - Q17

Chap 13 - Magnetic Effects of Electric Current - P241 - Q18

Chap 14 - Sources of Energy

Chap 14 - Sources of Energy - P243 - Q1

Chap 14 - Sources of Energy - P243 - Q2

Chap 14 - Sources of Energy - P243 - Q3

Chap 14 - Sources of Energy - P248 - Q1

Chap 14 - Sources of Energy - P248 - Q2

Chap 14 - Sources of Energy - P248 - Q3

Chap 14 - Sources of Energy - P253 - Q1

Chap 14 - Sources of Energy - P253 - Q1

Chap 14 - Sources of Energy - P253 - Q2

Chap 14 - Sources of Energy - P253 - Q2

Chap 14 - Sources of Energy - P253 - Q3

Chap 14 - Sources of Energy - P253 - Q4

Chap 14 - Sources of Energy - P254 - Q1

Chap 14 - Sources of Energy - P254 - Q1

Chap 14 - Sources of Energy - P254 - Q2

Chap 14 - Sources of Energy - P255 - Q2

Chap 14 - Sources of Energy - P255 - Q3

Chap 14 - Sources of Energy - P255 - Q4

Chap 14 - Sources of Energy - P255 - Q5

Chap 14 - Sources of Energy - P255 - Q6

Chap 14 - Sources of Energy - P255 - Q7

Chap 14 - Sources of Energy - P255 - Q8

Chap 14 - Sources of Energy - P255 - Q9

Chap 14 - Sources of Energy - P255 - Q10

Chap 15 - Our Environment

Chap 15 - Our Environment - P257 - Q1

Chap 15 - Our Environment - P257 - Q2

Chap 15 - Our Environment - P257 - Q3

Chap 15 - Our Environment - P261 - Q1

Chap 15 - Our Environment - P261 - Q2

Chap 15 - Our Environment - P264 - Q1

Chap 15 - Our Environment - P264 - Q1

Chap 15 - Our Environment - P264 - Q2

Chap 15 - Our Environment - P264 - Q3

Chap 15 - Our Environment - P265 - Q4

Chap 15 - Our Environment - P265 - Q5

Chap 15 - Our Environment - P265 - Q6

Chap 15 - Our Environment - P265 - Q7

Chap 15 - Our Environment - P265 - Q8

Chap 15 - Our Environment - P265 - Q9

Chap 16 - Management of Natural Resources

Chap 16 - Management of Natural Resources - P269 - Q1

Chap 16 - Management of Natural Resources - P269 - Q2

Chap 16 - Management of Natural Resources - P269 - Q3

Chap 16 - Management of Natural Resources - P269 - Q4

Chap 16 - Management of Natural Resources - P273 - Q1

Chap 16 - Management of Natural Resources - P273 - Q2

Chap 16 - Management of Natural Resources - P276 - Q1

Chap 16 - Management of Natural Resources - P276 - Q2

Chap 16 - Management of Natural Resources - P276 - Q3

Chap 16 - Management of Natural Resources - P278 - Q1

Chap 16 - Management of Natural Resources - P278 - Q2

Chap 16 - Management of Natural Resources - P278 - Q3

Chap 16 - Management of Natural Resources - P279 - Q4

Chap 16 - Management of Natural Resources - P279 - Q5

Chap 16 - Management of Natural Resources - P279 - Q6

Chap 16 - Management of Natural Resources - P279 - Q7

CBSE 10TH Economics

 

ICH helps the Class X Students of CBSE Economics ( free online Guide) to go through the latest updates by the CBSE Board.Here you will find information on CBSE Class X Economics Sample Papers, CBSE X Economics Guess Papers, CBSE Class X Economics Syllabus and NCERT Texbook Solutions.

 

Social Science - Economics - Syllabus 2010 - CBSE X

 

COURSE STRUCTURE

Class X

Theory Paper 1

3 Hours Marks 80 + 20

for internal assessment

Marks Periods

Unit 1 :India and the contemporary World - II 20 45

Unit 2 :India - Resources and their Development 18 40

Unit 3 :Democratic Politics II 18 40

Unit 4 :Understanding Economics - II 16 40

Unit 5 :Disaster Management 8 25

Internal Assessment

1. Tests (formative and summative) 10

2. Assignments (School & Home assignments) 05

3. Project work 05

Unit 1 : India and the Contemporary world - II

Themes Objectives
Students are required to choose any two themes each

from the first two sub units and one from the third

sub-unit. In sub-unit 1.1, theme 3 is compulsory. For

second theme in that subunit, students are required

to choose any one from the first two themes.

Thus all students are required to study five themes in

all.

Sub-unit 1.1 : Events and processes :

1. Nationalism in Europe :

(a) The growth of nationalism in Europe after

the 1830s. (b) The ideas of Giuseppe

Mazzini etc. (c) General characteristics of

the movements in Poland, Hungary, Italy,

Germany and Greece.

2. Nationalist Movement in Indo China :

Factors leading to growth of rationalism in

India

(a) French colonialism in Indochina. (b) Phases

of struggle against the French. (c) The ideas

of Phan Dinh Phung, Phan Boi Chau,

Nguyen Ac Quoc (d) The second world

war and the liberation struggle. (e) America

and the second Indochina war.

3. Nationalism in India : Civil Disobedience

Movement (a) First world war, Khilafat and

Non-Cooperation. (b) Salt Satyagraha. (c)

Movements of peasants, workers, tribals. (d)

Activities of different political groups.

Sub-unit 1.2 : Economies and livelihoods :

4. Industrialization 1850s - 1950s : (a) Contrast

between the form of industrialization in Britain

and India. (b) Relationship between handicrafts

and industrial production, formal and informal

sectors. (c) Livelihood of workers. Case studies

: Britain and India.

5. Urbanization and urban lives : (a) Patterns

of urbanization (b) Migration and the growth of

towns. (c) Social change and urban life. (d)

Merchants, middle classes, workers and urban

poor.

Case studies : London and Bombay in the

nineteenth and twentieth century.

6. Trade and Globalization : (a) Expansion and

integration of the world market in the nineteenth

and early twentieth century. (b) Trade and

economy between the two Wars. (c) Shifts after

the 1950s. (d) Implications of globalization for

livelihood patterns.

Case study : The post War International

Economic order, 1945 to 1960s.

Sub-unit 1.3 : Culture, Identity and Society

7. Print culture and nationalism. (a) The history

of print in Europe. (b) The growth of press in

nineteenth century India. (c) Relationship

between print culture, public debate and politics.

8. History of the novel: (a) Emergence of the

novel as a genre in the west. (b) The relationship

between the novel and changes in modern

society. (c) Early novels in nineteenth century

India. (d) A study of two or three major writers.

Sub-unit 1.4 : Map Work (2 Marks)

  • The theme will discuss the forms in which

    nationalism developed along with the formation

    of nation states in Europe in the post-1830

    period.

  • Discuss the relationship/difference between

    European nationalism and anti-colonial

    nationalisms.

  • Point to the way the idea of the nation states

    became generalized in Europe and elsewhere.

  • Discuss the difference between French

    colonialism in Indochina and British colonialism

    in India.

  • Outline the different stages of the anti-imperialist

    struggle in Indochina.

  • Familiarize the students with the differences

    between nationalist movements in Indo China

    and India.

  • Discuss the characteristics of Indian nationalism

    through a case study of Civil Disobedience

    Movement.

  • Analyze the nature of the diverse social

    movements of the time.

  • Familiarize students with the writings and ideals

    of different political groups and individuals,

    notably Mahatama Gandhi.

  • discuss two different patterns of industrialization,

    one in the imperial country and another within a

    colony.

  • Show the relationship between different sectors

    of production.

     

  • Show the difference between urbanization in two

    different contexts. A focus on Bombay and

    London will allow the discussions on urbanization

    and industrialization to complement each other.
     

  • Show that globalizaton has a long history and

    point to the shifts within the process.
     

  • Analyze the implication of globalization for local

    economies.
     

  • Discuss how globalization is experienced

    differently by different social groups.
     

  • Discuss the link between print culture and the

    circulation of ideas.
     

  • Familiarize students with pictures, cartoons,

    extracts from propaganda literature and

    newspaper debates on important events and

    issues in the past.
     

  • Show that forms of writing have a specific history,

    and that they reflect historical changes within

    society and shape the forces of change.
     

  • Familiarize students with some of the ideas of

    writers who have had a powerful impact on

    society.

 

Unit 2 : India - Resources and their Development

Themes Objectives
1. Resources : Types - natural and human;

Need for resource planning.

2. Natural Resources : land as a resource,

soil types and distribution; changing land use pattern;

land degradation and conservation measures.

3. Forest and Wild life resources : types and

distribution ,depletion of flora and fauna; conservation

and protection of forest and wild life.

4. Agriculture : types of farming, major crops,

cropping pattern, technological and institutional

reforms; their impact; contribution of Agriculture to

national economy - employment and output.

5. Water resources : sources, distribution,

utilisation, multi-purpose projects, water scarcity,

need for conservation and management, rainwater

harvesting. (One case study to be introduced)

6. Mineral Resources : types of minerals,

distribution, use and economic importance of

minerals, conservation.

7. Power Resources : types of power

resources : conventional and non-conventional,

distribution and utilization, and conservation.

8. Manufacturing Industries : Types, spatial

distribution, contribution of industries to the national

economy, industrial pollution and degradation of

environment, measures to control degradation. (One

case study to be introduced)

9. Transport, communication and trade

10. Map Work (4 marks)

 

Understand the value of resources and the need for

their judicious utilisation and conservation;

Identify various types of farming and discuss the

various farming methods; To describe the spatial

distribution of major crops as well as understand the

relationship between rainfall regimes and cropping

pattern;

Explain various government policies for institutional

as well as technological reforms since independence;

Understand the importance of forest and wild life in

our environment as well as develop concept towards

depletion of resources.

Understand the importance of agriculture in national

economy;

Understand the importance of water as a resource

as well as develop awareness towards its judicious

use and conservation;

Discuss various types of minerals as well as their

uneven nature of distribution and explain the need

for their judicious utilisation;

Discuss various types of conventional and nonconventional

resources and their utilization

Discuss the importance of industries in the national

economy as well as understand the regional disparities

which resulted due to concentration of industries in

some areas;

Discuss the need for a planned industrial development

and debate over the role of government towards

sustainable development;

To explain the importance of transport and

communication in the ever shrinking world;

To understand the role of trade in the economic

development of a country,

Project / Activity

  • Learners may collect photographs of typical rural houses, and clothing of people from different regions of

    India and examine whether they reflect any relationship with climatic conditions and relief of the area.
     

  • Learners may write a brief report on various irrigation practices in the village and the change in cropping

    pattern in the last decade.

    Posters

  • Pollution of water in the locality.
  • Depletion of forests and the greenhouse effect.

    Note : Any similar activities may be taken up.

    Unit 3 : Democratic Politics II

    Themes Themes Objectives
    1. Power sharing mechanisms in democracy

    Why and how is power shared in democracies?

    How has federal division of power in India

    helped national unity? To what extent has

    decentralisation achieved this objective? How

    does democracy accommodate different social

    groups?

    2. Working of Democracy

    Are divisions inherent to the working of

    democracy? What has been the effect of caste

    on politics and of politics on caste? How has

    the gender division shaped politics? How do

    communal divisions affect democracy?

    3. Competition and contestations in democracy

    How do struggles shape democracy in favour

    of ordinary people? What role do political

    parties play in competition and contestation?

    Which are the major national and regional parties

    in India? Why have social movements come to

    occupy large role in politics?

    4. Outcomes of democracy

    Can or should democracy be judged by its

    outcomes? What outcomes can one reasonably

    expect of democracies? Does democracy in

    India meet these expectations? Has democracy

    led to development, security and dignity for the

    people? What sustains democracy in India?

    5. Challenges to democracy

    Is the idea of democracy shrinking? What are

    the major challenges to democracy in India? How

    can democracy be reformed and deepened?

    What role can an ordinary citizen play in

    deepening democracy?

    • Analyse the relationship between social cleavages

      and political competition with reference to Indian

      situation.

    • Understand and analyse the challenges posed by

      communalism to Indian democracy.

    • Understand the enabling and disabling effects of

      caste and ethnicity in politics.

    • Develop a gender perspective on politics.
    • Introduce students to the centrality of power

      sharing in a democracy.

    • Understand the working of spatial and social

      power sharing mechanisms.

    • Analyse federal provisions and institutions.
    • Understand the new Panchayati Raj institutions

      in rural and urban areas.

    • Understand the vital role of struggle in the

      expansion of democracy.

    • Analyse party systems in democracies.
    • Introduction to major political parties in the

      country.

    • Analyse the role of social movements and nonparty

      political formations

    • Introduction to the difficult question of evaluating

      the functioning of democracies

    • Develop the skills of evaluating Indian democracy

      on some key dimensions : development, security

      and dignity for the people.

    • Understand the causes for continuation of

      democracy in India.

    • Distinguish between sources of strength and

      weaknesses of Indian democracy

    • Reflect on the different kinds of measures

      possible to deepen democracy

    • Promote an active and participatory citizenship.

    Unit 4 : Understanding Economics II

    Themes Learning Objectives
    1. The Story of Development : The

    traditional notion of development; National Income

    and Per-capita Income. Growth of NI - critical

    appraisal of existing development indicators (PCI,

    IMR, SR and other income and health indicators)

    The need for health and educational development;

    Human Development Indicators (in simple and brief

    as a holistic measure of development.

    The approach to this theme : Use case study of three

    states (Kerala, Punjab and Bihar) or take a few

    countries (India, China, Sri Lanka and one developed

    country)

    2. The Role of Service Sector in Indian

    Economy : What is service sector (through examples)

    : Importance of Service Sector in generating

    employment and income to the nation (with the help

    of a few case studies); Growth of Service Sector in

    India; India as a major service provider to the world;

    The need for public investment ; The role of important

    infrastructure, education and health

    3. Money and Financial System : Role of

    money in an economy : Historical origin; Formal and

    Informal financial institutions for Savings and Credit

    - General Introduction; Select one formal institution

    such as a nationalized commercial bank and a few

    informal institutions; Local money lenders, landlords,

    self help groups, chit funds and private finance

    companies.

    4. Globalisation : What is Globalisation

    (through some simple examples); How India is being

    globalised and why ; Development Strategy prior to

    1991. State Control of Industries : Textile goods as

    an example for elaboration; Economic Reforms

    1991; Strategies adoped in Reform measures (easing

    of capital flows; migration, investment flows);

    Different perspectives on globalisation and its impact

    on different sectors; Political Impact of globalisation.

    5. Consumer Awareness : How consumer is

    exploited (one or two simple case studies) factors

    causing exploitation of consumers; Rise of consumer

    awareness; how a consumer should be in a market;

    role of government in consumer protection

    • Familiarisation of some macroeconomic

      concepts.
       

    • Sensitizing the child about the rationale for overall

      human development in our country, which include

      the rise of income, improvements in health and

      education rather than income.
       

    • It is necessary to raise question in minds of the

      children whether the increase in income alone is

      sufficient for a nation.
       

    • How and why people should be healthy and

      provided with education.

       

    • Familiarize the concept of money as an economic

      concept;

       

    • Create awareness of the role of financial

      institutions from the point of view of day-to-day

      life.

       

    • To make aware of a major employment

      generating sector.

       

    • Sensitise the learner of how and why governments

      invest in such an important sector.

       

    • Provide children with some idea about how a

      particular economic phenomenon is influencing

      their surroundings and day-to-day life.

       

    • Making the child aware of his or her rights and

      duties as a consumer;

       

    • Familiarizing the legal measures available to

      protect from being exploited in markets.

    Suggested Activities

    Theme 2 :

    Visit to banks and money lenders / pawnbrokers and discuss various activities that you have observed in banks in the

    classroom;

    Participate in the meetings of self help groups, which engaged in micro credit schemes in the locality of learners and

    observe issues discussed.

    Theme 4 :

    Provide many examples of service sector activities. Use numerical examples, charts and photographs.

    Theme 5 : Collect logos of standards available for various goods and services. Visit a consumer court nearby and

    discuss in the class the proceedings; Collect stories of consumer exploitation and grievances from news papers and

    consumer courts.

    Unit 5 : Disaster Management

    25 Periods

    Tsunami

  • Safer Construction Practices.
  • Survival Skills.
  • Alternate Communication systems during disasters.
  • Sharing Responsibility

    Prescribed Textbooks :

    1. India and the Contemporary World-II (History) - Published by NCERT

    2. Contemporary India II (Geography) - Published by NCERT

    3. Democratic Politics II (Political Science) - Published by NCERT

    4. Understanding Economic Development II - Published by NCERT

    5. Together Towards a Safer India - Part III, a textbook an Disaster Management - Published by CBSE.

 

CBSE 10th Economics - Chap 1 - Development

CBSE 10th Economics - Chap 1 - Development - Page 17 - Q 1

CBSE 10th Economics - Chap 1 - Development - Page 17 - Q 2

CBSE 10th Economics - Chap 1 - Development - Page 17 - Q 3

CBSE 10th Economics - Chap 1 - Development - Page 17 - Q 4

CBSE 10th Economics - Chap 1 - Development - Page 17 - Q 5

CBSE 10th Economics - Chap 1 - Development - Page 17 - Q 6

CBSE 10th Economics - Chap 1 - Development - Page 17 - Q 7

CBSE 10th Economics - Chap 1 - Development - Page 17 - Q 8

CBSE 10th Economics - Chap 1 - Development - Page 17 - Q 9

CBSE 10th Economics - Chap 1 - Development - Page 17 - Q 10

CBSE 10th Economics - Chap 1 - Development - Page 17 - Q 11

CBSE 10th Economics - Chap 1 - Development - Page 17 - Q 12

CBSE 10th Economics - Chap 1 - Development - Page 17 - Q 13

CBSE 10th Economics - Chap 2 - Sector Of The Indian Economy

CBSE 10th Economics - Chap 2 - Sector Of The Indian Economy - Page 35 - Q 1

CBSE 10th Economics - Chap 2 - Sector Of The Indian Economy - Page 35 - Q 2

CBSE 10th Economics - Chap 2 - Sector Of The Indian Economy - Page 36 - Q 3

CBSE 10th Economics - Chap 2 - Sector Of The Indian Economy - Page 36 - Q 4

CBSE 10th Economics - Chap 2 - Sector Of The Indian Economy - Page 36 - Q 5

CBSE 10th Economics - Chap 2 - Sector Of The Indian Economy - Page 36 - Q 6

CBSE 10th Economics - Chap 2 - Sector Of The Indian Economy - Page 36 - Q 7

CBSE 10th Economics - Chap 2 - Sector Of The Indian Economy - Page 36 - Q 8

CBSE 10th Economics - Chap 2 - Sector Of The Indian Economy - Page 36 - Q 9

CBSE 10th Economics - Chap 2 - Sector Of The Indian Economy - Page 36 - Q 10

CBSE 10th Economics - Chap 2 - Sector Of The Indian Economy - Page 36 - Q 11

CBSE 10th Economics - Chap 2 - Sector Of The Indian Economy - Page 36 - Q 12

CBSE 10th Economics - Chap 2 - Sector Of The Indian Economy - Page 37 - Q 13

CBSE 10th Economics - Chap 2 - Sector Of The Indian Economy - Page 37 - Q 14

CBSE 10th Economics - Chap 2 - Sector Of The Indian Economy - Page 37 - Q 15

CBSE 10th Economics - Chap 2 - Sector Of The Indian Economy - Page 37 - Q 16

CBSE 10th Economics - Chap 2 - Sector Of The Indian Economy - Page 37 - Q 17

CBSE 10th Economics - Chap 2 - Sector Of The Indian Economy - Page 37 - Q 18

CBSE 10th Economics - Chap 2 - Sector Of The Indian Economy - Page 37 - Q 19

CBSE 10th Economics - Chap 2 - Sector Of The Indian Economy - Page 37 - Q 20

CBSE 10th Economics - Chap 2 - Sector Of The Indian Economy - Page 37 - Q 21

CBSE 10th Economics - Chap 2 - Sector Of The Indian Economy - Page 37 - Q 22

CBSE 10th Economics - Chap 2 - Sector Of The Indian Economy - Page 37 - Q 23

CBSE 10th Economics - Chap 2 - Sector Of The Indian Economy - Page 37 - Q 24

CBSE 10th Economics - Chap 3 - Money And Credit

CBSE 10th Economics - Chap 3 - Money And Credit - Page 52 - Q 1

CBSE 10th Economics - Chap 3 - Money And Credit - Page 52 - Q 2

CBSE 10th Economics - Chap 3 - Money And Credit - Page 52 - Q 3

CBSE 10th Economics - Chap 3 - Money And Credit - Page 52 - Q 4

CBSE 10th Economics - Chap 3 - Money And Credit - Page 52 - Q 5

CBSE 10th Economics - Chap 3 - Money And Credit - Page 52 - Q 6

CBSE 10th Economics - Chap 3 - Money And Credit - Page 52 - Q 7

CBSE 10th Economics - Chap 3 - Money And Credit - Page 52 - Q 8

CBSE 10th Economics - Chap 3 - Money And Credit - Page 52 - Q 9

CBSE 10th Economics - Chap 3 - Money And Credit - Page 52 - Q 10

CBSE 10th Economics - Chap 3 - Money And Credit - Page 52 - Q 11

CBSE 10th Economics - Chap 3 - Money And Credit - Page 52 - Q 12

CBSE 10th Economics - Chap 3 - Money And Credit - Page 52 - Q 13

CBSE 10th Economics - Chap 4 - Globalisation And The Indian Economy

CBSE 10th Economics - Chap 4 - Globalisation And The Indian Economy - Page 72 - Q 1

CBSE 10th Economics - Chap 4 - Globalisation And The Indian Economy - Page 72 - Q 2

CBSE 10th Economics - Chap 4 - Globalisation And The Indian Economy - Page 72 - Q 3

CBSE 10th Economics - Chap 4 - Globalisation And The Indian Economy - Page 72 - Q 4

CBSE 10th Economics - Chap 4 - Globalisation And The Indian Economy - Page 72 - Q 5

CBSE 10th Economics - Chap 4 - Globalisation And The Indian Economy - Page 72 - Q 6

CBSE 10th Economics - Chap 4 - Globalisation And The Indian Economy - Page 72 - Q 7

CBSE 10th Economics - Chap 4 - Globalisation And The Indian Economy - Page 72 - Q 8

CBSE 10th Economics - Chap 4 - Globalisation And The Indian Economy - Page 72 - Q 9

CBSE 10th Economics - Chap 4 - Globalisation And The Indian Economy - Page 72 - Q 10

CBSE 10th Economics - Chap 4 - Globalisation And The Indian Economy - Page 72 - Q 11

CBSE 10th Economics - Chap 4 - Globalisation And The Indian Economy - Page 72 - Q 12

CBSE 10th Economics - Chap 4 - Globalisation And The Indian Economy - Page 72 - Q 13

CBSE 10th Economics - Chap 5 - Consumer Right

CBSE 10th Economics - Chap 5 - Consumer Right - Page 87 - Q 1

CBSE 10th Economics - Chap 5 - Consumer Right - Page 87 - Q 2

CBSE 10th Economics - Chap 5 - Consumer Right - Page 87 - Q 3

CBSE 10th Economics - Chap 5 - Consumer Right - Page 87 - Q 4

CBSE 10th Economics - Chap 5 - Consumer Right - Page 87 - Q 5

CBSE 10th Economics - Chap 5 - Consumer Right - Page 87 - Q 6

CBSE 10th Economics - Chap 5 - Consumer Right - Page 87 - Q 7

CBSE 10th Economics - Chap 5 - Consumer Right - Page 87 - Q 8

CBSE 10th Economics - Chap 5 - Consumer Right - Page 87 - Q 9

CBSE 10th Economics - Chap 5 - Consumer Right - Page 87 - Q 10

CBSE 10th Economics - Chap 5 - Consumer Right - Page 87 - Q 11

CBSE 10th Economics - Chap 5 - Consumer Right - Page 87 - Q 12

CBSE 10th Economics - Chap 5 - Consumer Right - Page 87 - Q 13

CBSE 10TH English

This area should give the introduction of Course

CBSE 10th English - Chap 1 - A Letter to God

NCERT Book Solutions  - Thinking of the Text


 

CBSE English - Chapter 1 - A Letter to God - Page 7 - Q1

CBSE English - Chapter 1 - A Letter to God - Page 7 - Q2

CBSE English - Chapter 1 - A Letter to God - Page 7 - Q3

CBSE English - Chapter 1 - A Letter to God - Page 7 - Q4

CBSE English - Chapter 1 - A Letter to God - Page 8 - Q5

CBSE English - Chapter 1 - A Letter to God - Page 8 - Q6

CBSE 10th English - Chap 2 - Long Walk to Freedom

CBSE English - Chapter 2 - Long Walk to Freedom - Page 24 - Q1

CBSE English - Chapter 2 - Long Walk to Freedom - Page 24 - Q2

CBSE English - Chapter 2 - Long Walk to Freedom - Page 24 - Q3

CBSE English - Chapter 2 - Long Walk to Freedom - Page 24 - Q4

CBSE English - Chapter 2 - Long Walk to Freedom - Page 24 - Q5

CBSE 10th English - Chap 3 - Two Stories about Flying - I. His First Flight

CBSE 10th English - Chap 3 - Two Stories about Flying - I. His First Flight - Page 36 - Q 1

CBSE 10th English - Chap 3 - Two Stories about Flying - I. His First Flight - Page 36 - Q 2

CBSE 10th English - Chap 3 - Two Stories about Flying - I. His First Flight - Page 36 - Q 3

CBSE 10th English - Chap 3 - Two Stories about Flying - I. His First Flight - Page 36 - Q 4

CBSE 10th English - Chap 3 - Two Stories about Flying - I. His First Flight - Page 36 - Q 5

CBSE 10th English - Chap 3 - Two Stories about Flying - II. Black Aeroplane

CBSE 10th English - Chap 3 - Two Stories about Flying - II. Black Aeroplane - Page 40 - Q 1

CBSE 10th English - Chap 3 - Two Stories about Flying - II. Black Aeroplane - Page 40 - Q 2

CBSE 10th English - Chap 3 - Two Stories about Flying - II. Black Aeroplane - Page 40 - Q 3

CBSE 10th English - Chap 3 - Two Stories about Flying - II. Black Aeroplane - Page 40 - Q 4

CBSE 10th English - Chap 3 - Two Stories about Flying - II. Black Aeroplane - Page 40 - Q 5

CBSE 10th English - Chap 4 - From the Diary of Anne Frank

CBSE 10th English - Chap 4 - From the Diary of Anne Frank - Page 54 - Q 1

CBSE 10th English - Chap 4 - From the Diary of Anne Frank - Page 54 - Q 2

CBSE 10th English - Chap 4 - From the Diary of Anne Frank - Page 54 - Q 3

CBSE 10th English - Chap 4 - From the Diary of Anne Frank - Page 54 - Q 4

CBSE 10th English - Chap 4 - From the Diary of Anne Frank - Page 54 - Q 5

CBSE 10th English - Chap 4 - From the Diary of Anne Frank - Page 54 - Q 6

CBSE 10th English - Chap 4 - From the Diary of Anne Frank - Page 54 - Q 7

CBSE 10th English - Chap 5 - The Hundred Dresses–I

CBSE 10th English - Chap 5 - The Hundred Dresses–I - Page 70 - Q 1

CBSE 10th English - Chap 5 - The Hundred Dresses–I - Page 70 - Q 2

CBSE 10th English - Chap 5 - The Hundred Dresses–I - Page 70 - Q 3

CBSE 10th English - Chap 5 - The Hundred Dresses–I - Page 70 - Q 4

CBSE 10th English - Chap 6 - The Hundred Dresses–II

CBSE 10th English - Chap 6 - The Hundred Dresses–II - Page 79 - Q 1

CBSE 10th English - Chap 6 - The Hundred Dresses–II - Page 79 - Q 2

CBSE 10th English - Chap 6 - The Hundred Dresses–II - Page 79 - Q 3

CBSE 10th English - Chap 6 - The Hundred Dresses–II - Page 79 - Q 4

CBSE 10th English - Chap 6 - The Hundred Dresses–II - Page 79 - Q 5

CBSE 10th English - Chap 6 - The Hundred Dresses–II - Page 79 - Q 6

CBSE 10th English - Chap 7 - Glimpses of India - I. A Baker from Goa

CBSE 10th English - Chap 7 - Glimpses of India - I. A Baker from Goa - Page 88 - Q 1

CBSE 10th English - Chap 7 - Glimpses of India - I. A Baker from Goa - Page 88 - Q 2

CBSE 10th English - Chap 7 - Glimpses of India - I. A Baker from Goa - Page 88 - Q 3

CBSE 10th English - Chap 7 - Glimpses of India - II. Coorg

CBSE 10th English - Chap 7 - Glimpses of India - II. Coorg - Page 92 - Q 1

CBSE 10th English - Chap 7 - Glimpses of India - II. Coorg - Page 92 - Q 2

CBSE 10th English - Chap 7 - Glimpses of India - II. Coorg - Page 92 - Q 3

CBSE 10th English - Chap 7 - Glimpses of India - II. Coorg - Page 92 - Q 4

CBSE 10th English - Chap 7 - Glimpses of India - III. Tea from Assam

CBSE 10th English - Chap 8 - Mijbil the Otter

CBSE 10th English - Chap 9 - Madam Rides the Bus

CBSE 10th English - Chap 10 - The Sermon at Benares

CBSE 10th English - Chap 11 - The Proposal

CBSE 10TH History

ICH helps the Class X Students of CBSE History ( free online Guide) to go through the latest updates by the CBSE Board.Here you will find information on CBSE Class X History Sample Papers, CBSE X History Guess Papers, CBSE Class X History Syllabus and NCERT Texbook Solutions.

CBSE 10TH Maths

Maths Syllabus 2010 - CBSE X

Maths Course Structure

CLASS X

One Paper Time : 3 Hours Marks : 80

UNITS MARKS

I. NUMBER SYSTEMS 04

II. ALGEBRA 20

III. TRIGONOMETRY 12

IV. COORDINATE GEOMETRY 08

V. GEOMETRY 16

VI. MENSURATION 10

VII. STATISTICS AND PROBABILITY 10

TOTAL 80

UNIT I : NUMBER SYSTEMS

1. REAL NUMBERS (15) Periods

Euclid's division lemma, Fundamental Theorem of Arithmetic - statements after reviewing work done earlier

and after illustrating and motivating through examples, Proofs of results - irrationality of decimal

expansions of rational numbers in terms of terminating/non-terminating recurring decimals.

UNIT II : ALGEBRA

1. POLYNOMIALS (6) Periods

Zeros of a polynomial. Relationship between zeros and coefficients of a polynomial with particular reference

to quadratic polynomials. Statement and simple problems on division algorithm for polynomials with real

coefficients.

2. PAIR OF LINEAR EQUATIONS IN TWO VARIABLES (15) Periods

Pair of linear equations in two variables. Geometric representation of different possibilities of solutions/

inconsistency.

Algebraic conditions for number of solutions. Solution of pair of linear equations in two variables algebraically

- by substitution, by elimination and by cross multiplication. Simple situational problems must be included.

Simple problems on equations reducible to linear equations may be included.

3. QUADRATIC EQUATIONS (15) Periods

Standard form of a quadratic equation ax2 + bx + c = 0, (a ≠ 0). Solution of the quadratic equations

(only real roots) by factorization and by completing the square, i.e. by using quadratic formula. Relationship

between discriminant and nature of roots.

Problems related to day to day activities to be incorporated.

4. ARITHMETIC PROGRESSIONS (8) Periods

Motivation for studying AP. Derivation of standard results of finding the nth term and sum of first n terms.

UNIT III : TRIGONOMETRY

1. INTRODUCTION TO TRIGONOMETRY (12) Periods

Trigonometric ratios of an acute angle of a right-angled triangle. Proof of their existence (well defined);

motivate the ratios, whichever are defined at 0o & 90o. Values (with proofs) of the trigonometric ratios of

30o, 45o & 60o. Relationships between the ratios.

2. TRIGONOMETRIC IDENTITIES (16) Periods

Proof and applications of the identity sin2 A + cos2 A = 1. Only simple identities to be given. Trigonometric

ratios of complementary angles.

3. HEIGHTS AND DISTANCES (8) Periods

Simple and believable problems on heights and distances. Problems should not involve more than two right

triangles. Angles of elevation / depression should be only 30o, 45o, 60o.

UNIT IV : COORDINATE GEOMETRY

1. LINES (In two-dimensions) (15) Periods

Review the concepts of coordinate geometry done earlier including graphs of linear equations. Awareness of

geometrical representation of quadratic polynomials. Distance between two points and section formula

(internal). Area of a triangle.

UNIT V : GEOMETRY

1. TRIANGLES (15) Periods

Definitions, examples, counter examples of similar triangles.

1. (Prove) If a line is drawn parallel to one side of a triangle to intersect the other two sides in distinct

points, the other two sides are divided in the same ratio.

2. (Motivate) If a line divides two sides of a triangle in the same ratio, the line is parallel to the third side.

63

3. (Motivate) If in two triangles, the corresponding angles are equal, their corresponding sides are

proportional and the triangles are similar.

4. (Motivate) If the corresponding sides of two triangles are proportional, their corresponding angles are

equal and the two triangles are similar.

5. (Motivate) If one angle of a triangle is equal to one angle of another triangle and the sides including

these angles are proportional, the two triangles are similar.

6. (Motivate) If a perpendicular is drawn from the vertex of the right angle of a right triangle to the

hypotenuse, the triangles on each side of the perpendicular are similar to the whole triangle and to each

other.

7. (Prove) The ratio of the areas of two similar triangles is equal to the ratio of the squares on their

corresponding sides.

8. (Prove) In a right triangle, the square on the hypotenuse is equal to the sum of the squares on the other

two sides.

9. (Prove) In a triangle, if the square on one side is equal to sum of the squares on the other two sides, the

angles opposite to the first side is a right traingle.

2. CIRCLES (8) Periods

Tangents to a circle motivated by chords drawn from points coming closer and closer to the point.

1. (Prove) The tangent at any point of a circle is perpendicular to the radius through the point of contact.

2. (Prove) The lengths of tangents drawn from an external point to circle are equal.

3. CONSTRUCTIONS (8) Periods

1. Division of a line segment in a given ratio (internally)

2. Tangent to a circle from a point outside it.

3. Construction of a triangle similar to a given triangle.

UNIT VI : MENSURATION

1. AREAS RELATED TO CIRCLES (12) Periods

Motivate the area of a circle; area of sectors and segments of a circle. Problems based on areas and

perimeter / circumference of the above said plane figures. (In calculating area of segment of a circle, problems

should be restricted to central angle of 60o, 90o & 120o only. Plane figures involving triangles, simple

quadrilaterals and circle should be taken.)

2. SURFACE AREAS AND VOLUMES (12) Periods

(i) Problems on finding surface areas and volumes of combinations of any two of the following: cubes,

cuboids, spheres, hemispheres and right circular cylinders/cones. Frustum of a cone.

(ii) Problems involving converting one type of metallic solid into another and other mixed problems. (Problems

with combination of not more than two different solids be taken.)

UNIT VII : STATISTICS AND PROBABILITY

1. STATISTICS (15) Periods

Mean, median and mode of grouped data (bimodal situation to be avoided). Cumulative frequency graph.

2. PROBABILITY (10) Periods

Classical definition of probability. Connection with probability as given in Class IX. Simple problems on

single events, not using set notation.

INTERNAL ASSESSMENT 20 Marks

Evaluation of activities 10 Marks

Project Work 05 Marks

Continuous Evaluation 05 Marks

RECOMMENDED BOOKS

1. Mathematics - Textbook for class IX - NCERT Publication

2. Mathematics - Textbook for class X - NCERT Publication

3. Guidelines for Mathematics Laboratory in Schools, class IX- CBSE Publication

4. Guidelines for Mathematics Laboratory in Schools, class X - CBSE Publication

CBSE 10th Maths Chap 1 - Real Numbers

Chapter Summary


 

1. Euclid’s division lemma :

Given positive integers a and b, there exist whole numbers q and r satisfying a = bq + r, 0 ≤ r < b.

2. Euclid’s division algorithm : This is based on Euclid’s division lemma. According to this, the HCF of any two positive integers a and b, with a > b, is obtained as follows:

Step 1 : Apply the division lemma to find q and r where a = bq + r, 0 ≤ r < b.

Step 2 : If r = 0, the HCF is b. If r ≠ 0, apply Euclid’s lemma to b and r.

Step 3 : Continue the process till the remainder is zero. The divisor at this stage will be

HCF (a, b). Also, HCF(a, b) = HCF(b, r).

3. The Fundamental Theorem of Arithmetic :

Every composite number can be expressed (factorised) as a product of primes, and this factorisation is unique, apart from the order in which the prime factors occur.

4. If p is a prime and p divides a2, then p divides q, where a is a positive integer.

5. To prove that 2, 3 are irrationals.

6. Let x be a rational number whose decimal expansion terminates. Then we can express x in the form p

q , where p and q are coprime, and the prime factorisation of q is of the form 2n5m, where n, m are non-negative integers.

7. Let x = p/q be a rational number, such that the prime factorisation of q is of the form 2n5m,where n, m are non-negative integers. Then x has a decimal expansion which terminates.

8. Let x = p/q be a rational number, such that the prime factorisation of q is not of the form 2n 5m, where n, m are non-negative integers. Then x has a decimal expansion which isnon-terminating repeating (recurring).


NCERT Book Solutions


 

CBSE 10TH Maths Chap 1 Ex 1.1 Q1

CBSE 10TH Maths Chap 1 Ex 1.1 Q2

CBSE 10TH Maths Chap 1 Ex 1.1 Q3

CBSE 10TH Maths Chap 1 Ex 1.1 Q4

CBSE 10TH Maths Chap 1 Ex 1.1 Q5

CBSE 10TH Maths Real Numbers Chap 1 Ex 1.2 Q1

CBSE 10TH Maths Real Numbers Chap 1 Ex 1.2 Q2

CBSE 10TH Maths Real Numbers Chap 1 Ex 1.2 Q2

CBSE 10TH Maths Real Numbers Chap 1 Ex 1.2 Q3

CBSE 10TH Maths Real Numbers Chap 1 Ex 1.2 Q4

CBSE 10TH Maths Real Numbers Chap 1 Ex 1.2 Q5

CBSE 10TH Maths Real Numbers Chap 1 Ex 1.2 Q6

CBSE 10TH Maths Real Numbers Chap 1 Ex 1.2 Q7

CBSE 10TH Maths Real Numbers Chap 1 Ex 1.3 Q1

CBSE 10TH Maths Real Numbers Chap 1 Ex 1.3 Q2

CBSE 10TH Maths Real Numbers Chap 1 Ex 1.3 Q3

CBSE 10TH Maths Real Numbers Chap 1 Ex 1.4 Q1

CBSE 10TH Maths Real Numbers Chap 1 Ex 1.4 Q2

CBSE 10TH Maths Real Numbers Chap 1 Ex 1.4 Q3

CBSE 10th Maths Chap 2 - Polynomials

Chapter Summary


1. Polynomials of degrees 1, 2 and 3 are called linear, quadratic and cubic polynomials respectively.
2. A quadratic polynomial in x with real coefficients is of the form ax2 + bx + c, where a, b, c are real numbers with a ≠ 0.
3. The zeroes of a polynomial p(x) are precisely the x-coordinates of the points, where the graph of y = p(x) intersects the x -axis.
4. A quadratic polynomial can have at most 2 zeroes and a cubic polynomial can have at most 3 zeroes.
5. The division algorithm states that given any polynomial p(x) and any non-zero polynomial g(x), there are polynomials q(x) and r(x) such that p(x) = g(x) q(x) + r(x), where r(x) = 0 or degree r(x) < degree g(x).


NCERT Book Solutions


 

CBSE 10TH Maths Polynomials Chap 2 Ex 2.2 Q1

CBSE 10TH Maths Polynomials Chap 2 Ex 2.2 Q2

CBSE 10TH Maths Polynomials Chap 2 Ex 2.3 Q1

CBSE 10TH Maths Polynomials Chap 2 Ex 2.3 Q2

CBSE 10TH Maths Polynomials Chap 2 Ex 2.3 Q3

CBSE 10TH Maths Polynomials Chap 2 Ex 2.3 Q4

CBSE 10TH Maths Polynomials Chap 2 Ex 2.3 Q5

CBSE 10TH Maths Polynomials Chap 2 Ex 2.4 Q1

CBSE 10TH Maths Polynomials Chap 2 Ex 2.4 Q2

CBSE 10TH Maths Polynomials Chap 2 Ex 2.4 Q3

CBSE 10TH Maths Polynomials Chap 2 Ex 2.4 Q4

CBSE 10TH Maths Polynomials Chap 2 Ex 2.4 Q5

CBSE 10th Maths Chap 3 - PAIR OF LINEAR EQUATIONS IN TWO VARIABLES

Chapter Summary



1. Two linear equations in the same two variables are called a pair of linear equations in two variables. The most general form of a pair of linear equations is
a1x + b1y + c1 = 0
a2x + b2y + c2 = 0
where a1, a2, b1, b2, c1, c2 are real numbers, such that  a12+b12 ≠ 0, a22+b22 ≠ 0.

2. A pair of linear equations in two variables can be represented, and solved, by the:
(i) graphical method
(ii) algebraic method

3. Graphical Method :
The graph of a pair of linear equations in two variables is represented by two lines.
(i) If the lines intersect at a point, then that point gives the unique solution of the two equations. In this case, the pair of equations is consistent.
(ii) If the lines coincide, then there are infinitely many solutions — each point on the line being a solution. In this case, the pair of equations is dependent (consistent).
(iii) If the lines are parallel, then the pair of equations has no solution. In this case, the pair of equations is inconsistent.

4. Algebraic Methods : We have discussed the following methods for finding the solution(s) of a pair of linear equations :
(i) Substitution Method
(ii) Elimination Method
(iii) Cross-multiplication Method

5. There are several situations which can be mathematically represented by two equations that are not linear to start with. But we alter them so that they are reduced to a pair of linear equations.



NCERT Book Solutions


 

CBSE 10th Maths Chap 4 - Quadratic Equations

CBSE 10th Maths Chap 5 - Arithmetic Progressions

CBSE 10th Maths Chap 5 - Arithmetic Progressions - P99 - Q1

CBSE 10th Maths Chap 5 - Arithmetic Progressions - P106 - Q3

CBSE 10th Maths Chap 5 - Arithmetic Progressions - P99 - Q2

CBSE 10th Maths Chap 5 - Arithmetic Progressions - P99 - Q3

CBSE 10th Maths Chap 5 - Arithmetic Progressions - P99 - Q4

CBSE 10th Maths Chap 5 - Arithmetic Progressions - P105 - Q1

CBSE 10th Maths Chap 5 - Arithmetic Progressions - P106 - Q2

CBSE 10th Maths Chap 5 - Arithmetic Progressions - P106 - Q4

CBSE 10th Maths Chap 5 - Arithmetic Progressions - P106 - Q5

CBSE 10th Maths Chap 5 - Arithmetic Progressions - P106 - Q6

CBSE 10th Maths Chap 5 - Arithmetic Progressions - P106 - Q7

CBSE 10th Maths Chap 5 - Arithmetic Progressions - P106 - Q8

CBSE 10th Maths Chap 5 - Arithmetic Progressions - P106 - Q9

CBSE 10th Maths Chap 5 - Arithmetic Progressions - P106 - Q10

CBSE 10th Maths Chap 5 - Arithmetic Progressions - P106 - Q11

CBSE 10th Maths Chap 5 - Arithmetic Progressions - P106 - Q12

CBSE 10th Maths Chap 5 - Arithmetic Progressions - P106 - Q13

CBSE 10th Maths Chap 5 - Arithmetic Progressions - P106 - Q14

CBSE 10th Maths Chap 5 - Arithmetic Progressions - P106 - Q15

CBSE 10th Maths Chap 5 - Arithmetic Progressions - P106 - Q16

CBSE 10th Maths Chap 5 - Arithmetic Progressions - P107 - Q17

CBSE 10th Maths Chap 5 - Arithmetic Progressions - P107 - Q18

CBSE 10th Maths Chap 5 - Arithmetic Progressions - P107 - Q19

CBSE 10th Maths Chap 5 - Arithmetic Progressions - P107 - Q20

CBSE 10th Maths Chap 5 - Arithmetic Progressions - P112 - Q1

CBSE 10th Maths Chap 5 - Arithmetic Progressions - P112 - Q2

CBSE 10th Maths Chap 5 - Arithmetic Progressions - P112 - Q3

CBSE 10th Maths Chap 5 - Arithmetic Progressions - P113 - Q4

CBSE 10th Maths Chap 5 - Arithmetic Progressions - P113 - Q5

CBSE 10th Maths Chap 5 - Arithmetic Progressions - P113 - Q6

CBSE 10th Maths Chap 5 - Arithmetic Progressions - P113 - Q7

CBSE 10th Maths Chap 5 - Arithmetic Progressions - P113 - Q8

CBSE 10th Maths Chap 5 - Arithmetic Progressions - P113 - Q9

CBSE 10th Maths Chap 5 - Arithmetic Progressions - P113 - Q10

CBSE 10th Maths Chap 5 - Arithmetic Progressions - P113 - Q11

Given that,

Sn = 4n − n2

First term, a = S1 = 4(1) − (1)2 = 4 − 1 = 3

Sum of first two terms = S2

= 4(2) − (2)2 = 8 − 4 = 4

Second term, a2 = S2 − S1 = 4 − 3 = 1

d = a2 − a = 1 − 3 = −2

an = a + (n − 1)d

= 3 + (n − 1) (−2)

= 3 − 2n + 2

= 5 − 2n

Therefore, a3 = 5 − 2(3) = 5 − 6 = −1

a10 = 5 − 2(10) = 5 − 20 = −15

Hence, the sum of first two terms is 4. The second term is 1. 3rd, 10th, and nth terms are −1, −15, and 5 − 2n respectively.
 

CBSE 10th Maths Chap 5 - Arithmetic Progressions - P113 - Q118

CBSE 10th Maths Chap 5 - Arithmetic Progressions - P113 - Q12

CBSE 10th Maths Chap 5 - Arithmetic Progressions - P113 - Q13

CBSE 10th Maths Chap 5 - Arithmetic Progressions - P113 - Q14

CBSE 10th Maths Chap 5 - Arithmetic Progressions - P113 - Q15

CBSE 10th Maths Chap 5 - Arithmetic Progressions - P113 - Q16

CBSE 10th Maths Chap 5 - Arithmetic Progressions - P113 - Q17

CBSE 10th Maths Chap 5 - Arithmetic Progressions - P114 - Q19

CBSE 10th Maths Chap 5 - Arithmetic Progressions - P114 - Q20

CBSE 10th Maths Chap 5 - Arithmetic Progressions - P115 - Q1

CBSE 10th Maths Chap 5 - Arithmetic Progressions - P115 - Q2

CBSE 10th Maths Chap 5 - Arithmetic Progressions - P115 - Q3

CBSE 10th Maths Chap 5 - Arithmetic Progressions - P115 - Q4

CBSE 10th Maths Chap 5 - Arithmetic Progressions - P115 - Q5

CBSE 10th Maths Chap 6 - Triangles

CBSE 10th Maths Chap 7 - Coordinate Geometry

CBSE 10th Maths Chap 8 - Introduction to Trigonometry

CBSE 10th Maths Chap 9 - Some Applications of Trigonometry

CBSE 10th Maths Chap 10 - Circles

CBSE 10th Maths Chap 11 - Constructions

CBSE 10th Maths Chap 12 - Areas Related to Circles

CBSE 10th Maths Chap 13 - Surface Areas and Volumes

CBSE 10th Maths Chap 14 - Statistics

CBSE 10th Maths Chap 15 - Probability

CBSE Class X Previous Question Papers 2007

 

 

Subject

Set I Set II Set III
English (Communicative) Set I Set II Set III
English (Language and Literature) Set I Set II Set III
English (Language and Literature) (NE)   Set II  
Hindi (Course A) Set I Set II Set III
Hindi (Course A) (NE)   Set II  
Hindi (Course B) Set I Set II Set III
Hindi (Course B) (NE)   Set II  
Matchematics (For Blind Candidates only) (Urdu Version)   Set II  
Mathematics Set I Set II Set III
Mathematics (Blind candidates)   Set II  
Mathematics (For Blind Candidates Only) (Punjabi Version)   Set II  
Mathematics (NE)   Set II  
Mathematics (Panjabi Version) Set I    
Mathematics (Urdu Version) Set I    
Science and Technology Set I Set II Set III
Science and Technology (For Blind Candidates only)   Set II  
Science and Technology (NE)   Set II  
Science and Technology (Urdu Version) Set I    
Social Science Set I Set II Set III
Social Science (NE)   Set II

Courtesy: CBSE India
Other Subjects

Subject Set I Set II Set III
Arabic Set I Set II  
Assamese   Set II  
Bengali Set I Set II  
Bhutia   Set II  
Commerce Set I Set II  
Communicative Sanskrit Set I Set II  
English (Communicative)   Set II  
French Set I Set II  
German Set I Set II  
Gujarati   Set II  
Home Science Set I Set II  
Introductory Information Technology Set I Set II  
Kannada   Set II  
Lepcha   Set II  
Limboo   Set II  
Malayalam   Set II  
Manipuri   Set II  
Marathi   Set II  
Mizo   Set II  
Music Hindustani (Instrumental Melodic)   Set II  
Music Hindustani (Instrumental Percussion)   Set II  
Music Hindustani (Vocal) Set I Set II  
Music Karnataka (Vocal)   Set II  
Nepali   Set II  
Oriya   Set II  
Painting Set I Set II  
Persian   Set II  
Practical Skills in Science and Technology Set I Set II Set III
Practical Skills in Science and Technology (For Blind Candidates only) (Punjabi      
Practical Skills in Science and Technology (For Blind Candidates)      
Practical Skills in Science and Technology (For Blind Candidates) (Urdu Version)      
Practical Skills in Science and Technology (Punjabi Version)      
Practical Skills in Science and Technology (Urdu Version)      
Punjabi Set I Set II  
Russian   Set II  
Science and Technology (For Blind Candidates only) (Urdu Version)   Set II  
Science and Technology (Punjabi Version) Set I    
Sindhi   Set II  
Social Science (Punjabi Version) Set I    
Social Science (Urdu Version) Set I    
Spanish   Set II  
Tamil Set I Set II  
Telugu   Set II  
Tibetan   Set II  
Urdu (Course A) Set I Set II  
Urdu (Course B) Set I Set II


CBSE EXAM Question Papers for Board Examinations 2011 (CLASS X)

, Class 10

CBSE Last Years Papers - Class 10th (X) 2004 2005 2006 2007 2008 2009


CBSE Class X 2009 Papers
Set I Set II Set III
CBSE Maths CBSE Maths CBSE Maths
CBSE Science CBSE Science CBSE Science


 

CBSE Class X 2008 Papers
All India Delhi Foreign
CBSE Maths CBSE Maths CBSE Maths
CBSE Science CBSE Science CBSE Science


 

CBSE Class X 2007 Papers
All India Delhi Foreign
CBSE Maths CBSE Maths CBSE Maths
CBSE Science CBSE Science CBSE Science


 

CBSE Class X 2006 Papers
All India    
CBSE Maths    
CBSE Science    


 

CBSE Class X 2005 Papers
All India    
CBSE Maths    
CBSE Science    


 

CBSE Class X 2004 Papers
All India    
CBSE Maths    
CBSE Science  

Chap 14 - Sources of Energy - P255 - Q8

Chap 7 - Control and Coordination - P125 - Q4

Chap 8 - How do Organisms Reproduce? - P141 - Q4

Chap 6 - Life Processes - P110 - Q2