| Assertion(A): | Aldol condensation is usually carried out in a dilute solution of a strong base. |
| Reason(R): | Concentrated solution of strong base involves Cannizzaro reaction. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | Both (A) and (R) are False statements. |
| Assertion(A): | Formic acid reduces Tollen's reagent. |
| Reason(R): | Compounds containing the —CHO group reduce Tollen's reagent. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | Both (A) and (R) are false |
| Assertion(A): | Lower aldehydes and ketones are soluble in water, but their solubility decreases with increase in molecular mass. |
| Reason(R): | Aldehydes and ketones can be distinguished by Tollens' test. |
| Assertion (A): | Isobutanal does not give an iodoform test. |
| Reason (R): | It does not have \(\alpha-\)hydrogen. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | Both (A) and (R) are false. |
| Assertion (A): | \(~~~~~~~~~~~~O\\ ~~~~~~~~~~~~\|\\ HO-C-CH_3 \) does not undergo haloform reaction. |
| Reason (R): | It has no \(\alpha-\)hydrogen atom. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | Both (A) and (R) are False. |
| List-I (Chemical Composition) |
List-II (Reagent) |
||
| (A) | Benzenesulphonyl chloride | (I) | Tollen's reagent |
| (B) | Anhydrous ZnCl2 + Conc. HCl | (II) | Fehling A solution |
| (C) | Ammoniacal silver nitrate | (III) | Hinsberg's reagent |
| (D) | Aqueous CuSO4 solution | (IV) | Lucas reagent |
| (A) | (B) | (C) | (D) | |
| 1. | (IV) | (III) | (I) | (II) |
| 2. | (III) | (IV) | (I) | (II) |
| 3. | (III) | (IV) | (II) | (I) |
| 4. | (I) | (II) | (IV) | (III) |
| A. | ![]() |
| B. | ![]() |
| C. | ![]() |
| D. | ![]() |