question_answer

If a compound gives an orange or red precipitate with 2,4-dinitrophenylhydrazine, then the compound is

A)  an alkyl halide

B)  an aryl halide

C)  an amine

D)  a carbonyl compound

Correct Answer: D

Solution :

 If compound is a carbonyl compound then it gives an orange or red ppt. with 2, 4-dinitro phenylhydrazine.  is the functional group present in carbonyl compounds.