| 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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| Column A | Column B |
| 1. A homogeneous material which contains particles of one kind and has definite properties | (a) Homogeneous mixture. |
| 2. Two or more substance are mixed together in any proportion, such that they do noundergo any chemical change. | (b) Heterogeneous mixture |
| 3. A mixture whose contents are mixed uniformly. | (c) Alloy |
| 4. A homogeneous mixture of molten metals. | (d) Pure substance |
| (e) Mixture |
| 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. The elements which are generally good conductors of electricity. | (a) Nitric Acid |
| 2. The smallest unit of matter which can exist independently. | (b) Mercury |
| 3. An acid containing nitrogen in its molecules. | (c) Metals |
| 4. A metal which is liquid at room temperature. | (d) Graphite |
| (e) Molecules |
| 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 |
| 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 | ||
| (a) | Metals | (i) | Non-Reactive |
| (b) | Molecules | (ii) | Brittle |
| (c) | Non-Metals | (iii) | Lustrous |
| (d) | Noble Gases | (iv) | Smallest unit of Compound |
| 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 |
| Column A | Column B |
| 1. Oxygen | a. needed for photosynthesis |
| 2. Nitrogen | b. supports combustion |
| 3. Carbon dioxide | c. hydrated iron oxide |
| 4. Water vapour | d. helps in protein synthesis |
| e. determines climatic conditions |
| Column A | Column B |
| 1. The products of combustion of a fuel. | (a) 78% |
| 2. Percentage of oxygen in air, | (b) Carbon dioxide |
| 3. Percentage of nitrogen present in air. | (c) LPG |
| 4. A gas present in air which turns limewater milky. | (d) Water and carbon dioxide |
| (e) 21% |