Question

Which one of the following does not form sodium bisulphite addition product with sodium bisulphite solution?

• A. $CH_{2}O$
• B. $C_{6}H_{5}COCH_{3}$
• C. $C_{6}H_{5}CHO$
• D. $CH_{3}CHO$

Answer 1

Answer: (B)

$C_{6}H_{5}COCH_{3}$

Answer 2

Acetophenone $(C_{6}H_{5}COCH_{3})$ does not give addition product with sodium bisulphite $(NaHSO_{3})$ solution. This is because, two bulkier groups are attached with the carbonyl carbon. These groups decrease the reactivity of carbonyl carbon.