Question
| 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. 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. Copper | d. Conduction of heat |
| 2. Sodium | a. Low melting point |
| 3. Magnesium | e. 2, 8, 2 |
| 4. Boron | c. High melting point |
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| Column A | Column B |
| 1. Silver | a. Copper + tin |
| 2. Mercury | b. Medicines |
| 3. Platinum | c. Thermometer |
| 4. Brass | d. Catalyst |
| Living organism | Group |
| 1. Clostridium titani | (a) Heterotrophic Protista |
| 2. Paramoecium | (b) Fungi |
| 3. Chlamydomonas | (c) Bacteria belonging to Monera |
| 4. Baker’s yeast | (d) Algae |
| (e) Virus |
| Column ‘A’ | Column ‘B’ |
| 1. Strong acid | a. Magnesium hydroxide |
| 2. Weak alkali | b. Carbonic acid |
| 3. Weak acid | c. NaOH |
| 4. Strong alkali | d. Nitric acid |
| Column 1 | Column 2 | Column 3 |
| 1. Pressure | Mass/volume | Specific gravity |
| 2. Density | Force/area | Decreases with increase in height above the sea level |
| 3. Atmospheric pressure | No unit | Useful to determine the purity of a substance |
| 4. Relative density | The pascal | Decreases with increase in area |
| 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 |
| Column ‘A’ | Column ‘B’ |
| 1. Water containing cobalt | a. Mental retardation |
| 2. Methane gas | b. Paralysis |
| 3. Water containing lead | c. Inflammation of lungs |
| 4. Sulphur dioxide | d. Skin cancer |
| 5. Nitrogen dioxide | e. Irritation of eyes |
| Column ‘A’ | Column ‘B’ |
| 1. Lead glass | a. Plates |
| 2. Bakelite | b. Mattresses |
| 3. Thermocol | c. Electric bulb |
| 4. Optic glass | d. Electric switch |
| 5. Polypropylene | e. Lens |
| 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 |
| Group ‘A’ | Group ‘B’ |
| 1. Heartbeats | a. 350 ml |
| 2. RBC | b. 7.4 |
| 3. WBC | c. 37° C |
| 4. Blood donation | d. 72 per min |
| 5. Normal body temperature | e. 50 – 60 lakh/mm3 |
| 6. pH of oxygenated blood | f. 5000 – 6000 per mm3 |
| Group ‘A’ | Group ‘B’ |
| 1. William Harvey | a. Blood group AB. |
| 2. Carl Landsteiner | b. A, B, O blood group system. |
| 3. Decastello and Sturli | c. Mechanism of circulation of blood. |