Q.
Benzyl alcohol and sodium benzoate is obtained by the action of sodium hydroxide on benzaldehyde. This reaction is known as
2097
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Aldehydes Ketones and Carboxylic Acids
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Solution:
Benzaldehyde on treatment with 50% aqueous or ethanolic alkali solution undergoes Cannizzaro’s reaction like HCHO (no α−-hydrogen atom), i.e., one molecule is oxidised and one is reduced with the formation o f benzoic acid and benzyl alcohol respectively 2C6H5CHO+HCHONaOHC6H5CH2OH+C6H5COONa