Question

A compound possessing $\alpha$ -hydrogen atom, in the presence of dilute alkali forms $\beta$ -hydroxy aldehyde. This product on heating with dilute acid forms an unsaturated crotonaldehyde. The compound is

• A. $C{H}_{3}CHO$
• B. $C{H}_{3}C{H}_{2}CHO$
• C. $C{H}_2=CH-CHO$
• D. $HC\equiv C-CHO$

Answer 1

Answer: (A)

Correct answer is (a) $C{H}_{3}CHO$