Which one of the following functional groups undergoes hydrolysis with alkali to yield an acid group?

1. $-\mathrm{CN}$
2. $-\mathrm{CHO}$
3. $-\mathrm{COCH}_3$
4. $-\mathrm{Br}$

Solution

Cyanides are hydrolysed either by alkali or acid to give carboxylic acid.

Asked in: JEE-TOPICTESTS-CHEMISTRY

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