Cinnazzaro's reaction is given by:
Correct answer: A. Formaldehyde
- A. Formaldehyde
- B. Acetaldehyde
- C. Acetone
- D. Butanone
Explanation
The Cannizzaro reaction is basically a chemical reaction which involves the base-induced disproportionation of an aldehyde lacking a hydrogen atom in the alpha position or an alpha-hydrogen. Formaldehyde (HCHO) has no alpha hydrogen, so it can undergo Cannizzaro reaction.
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About Reactivity of Aldehydes and Ketones
The polar carbonyl group makes aldehydes and ketones undergo nucleophilic addition, reduction and condensation reactions. Aldehydes are generally more reactive and oxidise readily to carboxylic acids, whereas ketones resist mild oxidation; reactions with hydrogen cyanide, sodium bisulfite and 2,4-DNP help identify their behaviour.
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