Question
| Column A | Column B |
| 1. Silver | a. Copper + tin |
| 2. Mercury | b. Medicines |
| 3. Platinum | c. Thermometer |
| 4. Brass | d. Catalyst |
| Column A | Column B |
| 1. Silver | a. Copper + tin |
| 2. Mercury | b. Medicines |
| 3. Platinum | c. Thermometer |
| 4. Brass | d. Catalyst |
Column ‘A’ | Column ‘B’ |
1. Silver | b. Medicines |
2. Mercury | c. Thermometer |
3.Platinum | d. Catalyst |
4. Brass | a. Copper + tin |
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| Column I | Column II |
| 1. Respiration | a. Potassium and fluorine |
| 2. Acid + Base | b. Glucose and oxygen |
| 3. Photosynthesis | c. Carbon dioxide and water |
| 4. Ionic bond | d. Salt and water |
| Microbes | Size |
| 1. Virus | (a) 1 μm to 10 μm |
| 2. Algae | (b) 200 μm |
| 3. Protozoa | (c) 10 μm to 100μm |
| 4. Bacteria | (d) 10 nm to 100 nm |
| Column ‘A’ | Column ‘B’ |
| 1. Gravitational force | a. Alpha Centauri |
| 2. The star nearest to us other than the Sun | b. 2 × 1030 kg |
| 3. Mass of the Sun | c. 10 30 g |
| d. towards the centre of a star or a planet |
| Group A | Group B |
| 1. Tamarind | a. Acetic acid |
| 2. Curd | b. Citric acid |
| 3. Lemon | c. Tartaric acid |
| 4. Vinegar | d. Lactic acid |
| Column ‘A’ | Column ‘B’ |
| 1. Copper | a. Low melting point |
| 2. Sodium | b. Liquid |
| 3. Magnesium | c. High melting point |
| 4. Boron | d. Conduction of heat |
| e. 2, 8, 2 |
| Column ‘A’ | Column ‘B’ |
| 1. < 8 MSun | a. Proton star |
| 2. between 8 and 25 times MSun | b. Black hole |
| 3. > 25 MSun | c. Neutron star |
| d. White dwarf |
| S. No. | A | S. No. | B |
| (i) | Kharif crops | (a) | Food for cattle |
| (ii) | Rabi crops | (b) | Urea and superphosphate |
| (iii) | Chemical fertilisers | (c) | Animal excreta, cow-dung, and plant waste |
| (iv) | Organic manure | (d) | Wheat, gram, pea |
| (e) | Paddy and maize |
| Column ‘A’ | Column ‘B’ |
| 1. Red tomato | a. Chlorophyll |
| 2. Green leaf | b. Carotene |
| 3. Carrot | c. Anthocyanin |
| 4. Violet | d. Lycopene |
| Column A | Column B |
| 1. Silver | a. Copper + tin |
| 2. Mercury | b. Medicines |
| 3. Platinum | c. Thermometer |
| 4. Brass | d. Catalyst |
| Column ‘A’ | Column ‘B’ |
| 1. Earthquake | a. Formation of artificial water reservoir |
| 2. Tsunami | b. Wildlife lost |
| 3. Forest fire | c. Loss of coastal regions |
| 4. Landslide | d. Change in the level of groundwater-table |