Question

$\alpha, \beta$ -unsaturated aldehyde is formed in the sequence

• A. $HCHO \xrightarrow{KOH (a q)}$
• B. $CH _{3} CHO \xrightarrow{\text {dil}. KOH} A \xrightarrow{\Delta} B$
• C. $CCl _{3} CHO \xrightarrow{KOH (a q)}$
• D. $CH _{3}- \overset{\overset{O}{||}}{C} - OC _{2} H _{5} \xrightarrow{KOH (a q)}$

Answer 1

Answer: (B)

Correct answer is (b) $CH _{3} CHO \xrightarrow{\text {dil}. KOH} A \xrightarrow{\Delta} B$