Question
Differentiate between Cannizzaro reaction and Aldol reaction.
| Cannizzaro reaction | Aldol reaction |
| 1. It is given by aldehydes not having alpha hydrogen atom. | 1. It is given by aldehydes and ketones possessing alpha hydrogen atom. |
| 2. In this reaction an aldehyde is converted to the corresponding acid and an alcohol. | 2. In this reaction aldehydes and ketones are converted into aldol and ketols, respectively. |
| 3. It is a disproportionate ion reaction. | 3. It is an addition reaction. |
| 4. It requires concentrated alkali as a catalyst. | 4. It requires dilute alkali as a catalyst. |
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| Time t/minute | $[ A ] / mol L ^{-1}$ | $[ B ] / ml L ^{-1}$ |
| $0$ | $1.000$ | $2.000$ |
| $10$ | $0.534$ | $1.068$ |
| $20$ | $0.342$ | $0.360$ |
| $30$ | $0.180$ | $0.360$ |