Which of the following compounds on reaction with Grignard reagent followed by hydrolysis forms secondary…

Which of the following compounds on reaction with Grignard reagent followed by hydrolysis forms secondary alcohol?
  1. $\mathrm{CH}_3 \mathrm{CHO}$
  2. $\mathrm{HCHO}$
  3. $\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{COCH}_3$
  4. $\mathrm{CH}_3 \mathrm{COCH}_3$

Solution

Aldehydes (except formaldehyde) on reaction with Grignard reagent followed by hydrolysis forms secondary alcohol. $\therefore \mathrm{CH}_3 \mathrm{CHO}$ forms secondary alcohol.

Asked in: MHT CET 2021 (20 Sep Shift 2)

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