question_answer

The reagent that gives an orange coloured ppt. with acetaldehyde is:

A)  \[N{{H}_{2}}OH\]           

B)  \[NaHS{{O}_{3}}\]

C)  c) iodine                             

D)  2,4-DNP

Correct Answer: D

Solution :

                 2,4-dinitrophenyl hydrazine on reaction with acetaldehyde gives orange  precipitate of   acetaldehyde   2,4-dinitro   phenyl