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(a) 3, 4, 1, 2
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| Column I | Column II |
| A. Phase transfer catalysis | 1. Thermal decomposition of $KClO _3$ |
| B. Enzyme catalysis | 2. Reaction of $RCl$ with $NaCN$ |
| C. Homogeneous catalysis | 3. Hydrogeneration of ethyleno |
| D. Heterogeneous catalysis | 4. Conversion of glucose into ethanol |
| Code: | A | B | C | D |
| (a) | 2 | 4 | 1 | 3 |
| (b) | 4 | 3 | 2 | 1 |
| (c) | 1 | 2 | 3 | 4 |
| (d) | 3 | 1 | 4 | 2 |
| Column I | Column II |
| A. Positive catalyst | 1. Glycerol |
| B. Negative Catalyst | 2. Molybdenum |
| C. Catalyst Poison | 3. $MnO _2$ |
| D. Promoter | 4. $H _2 S$ |
| Code: | A | B | C | D |
| (a) | 3 | 1 | 4 | 2 |
| (b) | 4 | 3 | 2 | 1 |
| (c) | 1 | 2 | 3 | 4 |
| (d) | 2 | 4 | 1 | 3 |
(i) Oxide ore - (a) Zinc blende
(ii) Carbonate ore - (b) Horn silver
(Hi) Sulphide ore - (c) Haematite
(iv) Chloride ore - (d) Calamine
(ii) Carbonate ore - (b) Horn silver
(Hi) Sulphide ore - (c) Haematite
(iv) Chloride ore - (d) Calamine
| (i) Li-ion battery | (a) Pacemakers |
| (ii) Mercury button cell | (b) Fuel cell |
| (iii) Lead storage battery | (c) Cell phone |
| (iv) $H _2- O _2$ cell | (d) Inverter |
| Code: | A | B | C | D |
| $i$. | a | b | c | d |
| ii. | d | c | b | a |
| iii. | b | d | a | c |
| iv. | c | a | d | b |
| List-I | List-II | A | B | C | D | |
| A. Zinc blende | 1. $Fe _2 O _3 \cdot 3 H _2 O$ | (a) | 1 | 2 | 3 | 4 |
| B. Iron pyrite | 2. $2 CuCO _3 \cdot Cu ( OH )_2$ | (b) | 2 | 3 | 4 | 1 |
| C. Azurite | 3. ZnS | (c) | 3 | 4 | 2 | 1 |
| D. Limonite | 4. $FeS _2$ | (d) | 4 | 3 | 2 | 1 |
| Column-I | Column-II |
| A. $CH _3 COO ^{-}$ | 1. Very weak acid |
| B. $NH _2{ }^{-}$ | 2. Weak base |
| C. $OH ^{-}$ | 3. Weak acid |
| D. $H _3 O ^{+}$ | 4. Strong base |
| Column-I | Column-II |
| A. Retinol | 1. Skin cleanser |
| B. Methanol | 2. Additive to petrol |
| C. Isopropyl alcohol | 3. Proper functioning of eyes |
| D. Ethanol | 4. Industrial solvent |
| Code. | A | B | C | D |
| (a) | 3 | 4 | 1 | 2 |
| (b) | 1 | 2 | 3 | 4 |
| (c) | 4 | 3 | 2 | 1 |
| (d) | 2 | 1 | 4 | 3 |
| Column I | Column II |
| A. Solid in gas | 1. Foam |
| B. Gas in liquid | 2. Gel |
| C. Liquid in liquid | 3. Solid Aerosol |
| D. Liquid in solid | 4. Emulsion |
| Code: | A | B | C | D |
| (a) | 1 | 2 | 3 | 4 |
| (b) | 4 | 3 | 2 | 1 |
| (c) | 3 | 1 | 4 | 2 |
| (d) | 2 | 4 | 1 | 3 |
(i) Tetragens – (a) Oxygen
(ii) Icosagens – (b) Carbon
(iii) Chalcogens – (c) Nitrogen
(iv) Pnictogens – (d) Boron
(ii) Icosagens – (b) Carbon
(iii) Chalcogens – (c) Nitrogen
(iv) Pnictogens – (d) Boron
| A. Tungsten | 1. Development of human civilization |
| B. Titanium | 2. Light bulb filament |
| C. Molybdenum | 3. Artificial joint |
| D. Copper | 4. Boiler plants |