| Column A | Column B |
| 1. The process in which a solid changes into a liquid. | (a) Brownian movement |
| 2. The process in which a liquid changes into a gas. | (b) Condensation |
| 3. The process in which a gas changes into a liquid. | (c) Melting |
| 4. The process in which a liquid changes into a solid. | (d) Boiling |
| (e) Freezing |
| Column A | Column B |
| 1. The process in which a solid changes into a liquid. | (c) Melting |
| 2. The process in which a liquid changes into a gas. | (d) Boiling |
| 3. The process in which a gas changes into a liquid. | (b) Condensation |
| 4. The process in which a liquid changes into a solid. | (e) Freezing |
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| List I | List II |
| 1. Are highly rigid and have a definite shape | A: Gases only |
| 2. Have no definite shape | B: Solids only |
| 3. Have definite volume but no definite shape | C: Liquids and gases only |
| 4. Are highly compressible and least rigid | D: liquids only |
| List I | List II |
| 1.Have mass | |
| 2. Are slightly compressible | A: liquids only |
| 3. Occupy space | C:Solid, liquids and gases |
| 4.Are not compressible | B: Solids only |
| List 1 | List 2 | ||
| 1 | The process which involves oxidation of food substance in living organisms | A | Helium |
| 2 | The component of air which finds application in observation balloons | B | Carbon dioxide |
| 3 | The process which involves oxidation of substances, liberating heat and light energy | C | Respiration |
| 4 | The component of air which is heavier than air and fairly soluble in water | D | Combustion |
| List I | List II |
| 1.Have no definite volume | A: Gases only |
| 2. Have no definite shape and volume | B: Gases only |
| 3. Occupy space | C:Solid, liquids and gases |
| 4.Are not compressible | D: Solids only |
| Column A | Column B |
| 1. Name of potable water generally consumed in India villages. | 1. Rainwater |
| 2. Purest form of natural water. | 2. Seawater |
| 3. Impurest form of natural water. | 3. Sedimentation |
| 4. A gas commonly used to kill germs and bacteria in city water supply. | 4. Well water |
| 5. Chlorine |
| Column A | Column B |
| 1. Evaporation | a. process by which pure water is obtained |
| 2. Diarrhoea | b. water cycle |
| 3. Sca water | c. waterborne disease |
| 4. Distillation | d. large amounts of dissolved salts |
| Column A | Column B |
| 1. Used to increase fertility of soil. | (a) Alloy |
| 2. A superior metal is made by mixing two or more molten metals. | (b) Food preservatives |
| 3. Use for killing unwanted herbs. | (c) Fertilisers |
| 4. Used in stopping the wastage of food. | (d) Herbicides |
| (e) Funnel |
| 1. Sodium carbonate and water | A: Immiscible solutionr |
| 2. Chemical used in sedimentation during purification of water | B: Aqueous solution |
| 3. vapourisation | C: Alum |
| 4. Kerosene and water | D: Liquid to a gaseous state |
| Column A | Column B | ||
| (a) | Marie Curie | (i) | Safety Lamp |
| (b) | John dalton | (ii) | Helium |
| (c) | William Ramsey | (iii) | Nobel Prize Winner (two times) |
| (d) | Sir Humphry Davy | (iv) | Atomic Theory |
| List I | List II |
| 1. Solid 'X' to a Liquid 'X' | A: Condensation |
| 2. Liquid 'Y' to its vapour 'Z' | B: Vaporization |
| 3. 'Z' to 'Y' | C: Melting |
| 4. 'Y' to 'X' | D: Freezing |
| 5. The temperature at which 'Y' changes to 'Z' | F: Boiling point |