Question
MCH
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| i. Saturated solution | (a) Sulphur in acetone |
| ii. Unsaturated solution | (b) 56 g NaCl in water |
| iii. Supersaturated solution | (c) 10 g of NaCl in water |
| iv. Non-aqueous solution | (d) 36 g of NaCl in water |
| 1. Boyle’s Law | (a) |
| 2. Absolute Scale | (b) V ∝ t |
| 3. Charle’s Law | (c) |
| 4. Boltzmann Constant | (d) V ∝ n |
| 5. Avogadro’s Law | (e) 0 K (zero kelvin) |
| Sample | pH |
| (i) Sour milk | (a) 4.2 |
| (ii) Tomato juice | (b) 4.5 |
| (iii) Seawater | (c) 12 |
| (iv) Lime water | (d) 8 |
| i. Sugar in water | (a) Exothermic process |
| ii. Sulphur in carbon sulphide | (b) Aqueous solution |
| iii. The solubility of CaO | (c) Endothermic process |
| iv. Solubility of $KNO_3$ | (d) Non-aqueous solution |
| 1. Psychotropic drugs | (a) Nicotine |
| 2. Chronic metabolic disorder | (b) Emphysema |
| 3. Addiction to Tobacco | (c) Polyphagia |
| 4. Excess hunger | (d) Polydipsia |
| 5. Inflammation of lung alveoli | (e) Mood Altering drugs |
| 6. Loss of water leads to thirst | (f) Diabetes Mellitus |
| Medium | Speed of Sound (m/s) |
| (i) Copper | (a) 343 |
| (ii) Water | (b) 331 |
| (iii) Air (0° c) | (c) 5010 |
| (iv) Air (at 20° c) | (d) 1493 |
| i. $F_2$ | (a) Polyatomic molecule |
| ii. $O _3$ | (b) Monoatomic molecule |
| iii. $P_4$ | (c) Diatomic molecule |
| iv. $He$ | (d) Triatomic molecule |
| 1. Charge of each α particle | (a) γ ray |
| 2. Charge of each β particle | (b) +2e |
| 3. Penetration power is maximum | (c) α ray |
| 4. Ionisation power is maximum | (d) zero |
| i. $H_2$ | (a) Hetero diatomic molecule |
| ii. HCl | (b) Monoatomic molecule |
| iii. $H_2O$ | (c) Homo diatomic molecule |
| iv. Ne | (d) Hetero triatomic molecule |
| i. Boron family | (a) Group 17 |
| ii. Carbon family | (b) Group 16 |
| iii. Nitrogen family | (c) Group 13 |
| iv. Chalcogen family | (d) Group 15 |
| v. Halogen family | (e) Group 14 |