Question
| Column A | Column B |
| Q.1. Turmeric | A. Changes colour |
| Q.2. Acid + Base red rose | B. Natural indicator from |
| Q.3. Hydrangea flower substances | C. Becomes red in basic |
| Q.4. Red rose extract | D. Salt + Water + Heat |
| Column A | Column B |
| Q.1. Turmeric | A. Changes colour |
| Q.2. Acid + Base red rose | B. Natural indicator from |
| Q.3. Hydrangea flower substances | C. Becomes red in basic |
| Q.4. Red rose extract | D. Salt + Water + Heat |
| Column A | Column B |
| 1. Turmeric | C. Becomes red in basic |
| 2. Acid + Base red rose | D. Salt + Water + Heat |
| 3. Hydrangea flower substances | A. Changes colour |
| 4. Red rose extract | B. Natural indicator from |
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| Column A | Column B |
| Q.1. Pinhole | (a) Blocks light completely camera |
| Q.2. Opaque object | (b) The dark region formed behind the object |
| Q.3. Transparent object | (c) Forms an inverted image |
| Q.4. Shadow | (d) Light passes almost completely through it |
| Column I | Column II |
| A. Lactic acid | 1. Harmful for crops, buildings |
| B. Acid rain | 2. Acidic |
| C. Aerated drink | 3. Indicator |
| D. Phenolphthalein | 4. Curd |
| 5. Salt |
| Column I | Column II |
| Q.1. Small intestine | A. Produces bile |
| Q.2. Large intestine | B. Produces pancreatic juice |
| Q.3. Stomach | C. Absorbs nutrients |
| Q.4. Liver | D. Absorbs water |
| Column I | Column II |
| (a) Conduction | (i) Wood, plastic, wool, air, water |
| (b) Convection | (ii) Requires no medium |
| (c) Radiation | (iii) Solids |
| (d) Conductors | (iv) Metals |
| (v) Liquids |
| Column I | Column II |
| A. Lichen | 1. Guard cells |
| B. Pitcher plant | 2. Heterotrophs |
| C. Animals | 3. Saprophyte |
| D. Stomata | 4. Symbiotic relationship |
| 5. Insectivorous plant |
| Column I | Column II |
| A. Saprotroph | 1. Pitcher plant |
| B. Chlorophyll | 2. Parasite |
| C. Rhizobium | 3. Green leaf |
| D. Cuscuta | 4. Fungi |
| 5. N2-fixing bacteria |
| Column I (Animals) | Column II (Mode of feeding) |
| A. Butterfly | 1. Bitting and chewing |
| B. Ant | 2. Swallowing |
| C. Mosquito | 3. Siphoning |
| D. Snake | 4. Sucking |
| Column I | Column II |
| A. Salivary gland | 1. Bile juice secretion |
| B. Stomach | 2. Storage of undigested food |
| C. Liver | 3. Saliva secretion |
| D. Rectum | 4. Acid release |
| 5. Digestion is completed |
| Column I | Column II |
| A. Vessels | 1. Food factory of plant |
| B. Leaf | 2. Stomata |
| C. Tiny pores present on leaf | 3. Raw material |
| D. CO2 and water | 4. Saprophyte |
| 5. Water and mineral |
| Column I. | Column II |
| (a) Heating effect of electric current | (i) Battery |
| (b) Magnetic effect of electric current | (ii) Electric bulb |
| (c) Combination of cells | (iii) Electric bell |
| (d) Safety device | (iv) Fuse |