question_answer

The reagent used for separation of acetaldehyde and acetophenone is:

A) \[{{\operatorname{NaHSO}}_{3}}\]

B) \[{{\operatorname{C}}_{6}}{{H}_{5}}NHN{{H}_{2}}\]

C) \[{{\operatorname{NH}}_{2}}OH\]       

D) \[\operatorname{NaOH}-{{I}_{2}}\]

Correct Answer: A

Solution :

 \[\mathbf{NaHS}{{\mathbf{O}}_{\mathbf{3}}}\] \[{{\operatorname{NaHSO}}_{3}}\]is used for the separation of acetaldehyde and acetophenone. As \[{{\operatorname{NaHSO}}_{3}}\]reacts with acetaldehyde while acetophenone does not react with\[{{\operatorname{NaHSO}}_{3}}\].