question_answer

Which of the following reagent reacts differently with \[HCHO,\,C{{H}_{3}}CHO\] and \[C{{H}_{3}}COC{{H}_{3}}\]            [MP PET 1999]

A)                 HCN      

B)                 \[N{{H}_{2}}N{{H}_{2}}\]

C)                 \[N{{H}_{2}}OH\]            

D)                 \[N{{H}_{3}}\]