Question

The product of acidic hydrolysis of P and Q can be distinguished by

• A. Lucas Reagent
• B. $2,4-$DNP
• C. Fehling's Solution
• D. $NaHS{O}_3$

Answer 1

The correct option is C Fehling's Solution

Ketone (non- reducing) and aldehyde (reducing) can be distinguished by Fehling solution.

Lucas reagent converts alcohols into alkyl halides.
$2,4-$DNP test is for carbonyl group and it does not distinguish between aldehyde and ketone.
$NaHS{O}_3$ is also not suitable here because it reacts with both aldehyde and ketone provided they are not bulky.
Hence, (c) is correct.