Question
| Code. | A | B | C | D |
| (a) | 4 | 1 | 2 | 3 |
| (b) | 1 | 2 | 3 | 4 |
| (c) | 3 | 4 | 1 | 2 |
| (d) | 2 | 3 | 4 | 1 |
✓
Answer
4 1 2 3
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| Column-I | Column-II |
| A. Glycerol + dil. $HNO _3$ | 1. Meso oxalic acid |
| B. Glycerol + bismuth nitrate | 2. Oxalic acid |
| C. Glycerol + Fenton's reagent | 3. Glyceric acid + Tartronic acid |
| D. Glycerol + acidified $KMnO _4$ | 4. Glycerose |
| Code. | A | B | C | D |
| (a) | 3 | 1 | 4 | 2 |
| (b) | 1 | 2 | 3 | 4 |
| (c) | 4 | 3 | 2 | 1 |
| (d) | 2 | 4 | 1 | 3 |
(i) Graphene – (a) Honeycomb crystal
(ii) Diamond – (b) Aromatic character
(iii) Fullerene – (c) Lubricant
(iv) Graphite – (d) Very hard
(ii) Diamond – (b) Aromatic character
(iii) Fullerene – (c) Lubricant
(iv) Graphite – (d) Very hard
(i) ammonia - (a) suffocating odour
(ii) $SO _2$ - (b) Rotten fish smell
(iii) $PH _3$ - (c) Greenish-yellow gas
(iv) $Cl _2-$ (d) pungent-smelling gas
→(ii) $SO _2$ - (b) Rotten fish smell
(iii) $PH _3$ - (c) Greenish-yellow gas
(iv) $Cl _2-$ (d) pungent-smelling gas
| Column I | Column II |
| A. Colloidal graphite | 1. Bredig's arc method |
| B. Colloidal gold | 2. Ultrasonic dispersion |
| C. Colloidal AgCl | 3. Mechanical dispersion |
| D. Colloidal mercury | 4. Peptisation |
| Code: | A | B | C | D |
| (a) | 1 | 2 | 3 | 4 |
| (b) | 4 | 3 | 2 | 1 |
| (c) | 2 | 4 | 1 | 3 |
| (d) | 3 | 1 | 4 | 2 |
| 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 |
(i) Haematite - (a) $Fe _3 O _4$
(ii) Siderite - (b) $Fe _3 O _3$
(iii) Iron pyrite - (c) $Fe _3 O _3$
(iv) Magnetite - (d) $FeS _2$
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(iii) Iron pyrite - (c) $Fe _3 O _3$
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(i) Helium – (a) flash bulbs
(ii) Neon – (b) radioactive
(iii) Krypion – (c) air balloons
(iv) Radon – (d) Brilliant red
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(iii) Krypion – (c) air balloons
(iv) Radon – (d) Brilliant red
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(iv) Chromite – (d) Hydraulic washing process
(ii) Copper pyrite – (b) Leaching process
(Hi) Bauxite – (c) Froth floatation process
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| Column-I | Column-II |
| A. Sulphuric acid | 1. Soap industry |
| B. Sodium hydroxide | 2. Baking soda |
| C. Magnesium hydroxide | 3. Fertilizer industry |
| D. Sodium bicarbonate | 4. Antacid tabletes |
| Column I | Column II |
| A. Penicillin | 1. Stomach trouble |
| B. Colloidal gold | 2. Eye lotion |
| C. Milk of magnesia | 3. Tonic |
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| Code: | A | B | C | D |
| (a) | 4 | 3 | 1 | 2 |
| (b) | 1 | 2 | 3 | 4 |
| (c) | 3 | 4 | 2 | 1 |
| (d) | 2 | 1 | 4 | 3 |