question_answer

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

A) \[HCN\]                               

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

C) \[N{{H}_{2}}OH\]            

D) \[N{{H}_{3}}\]

Correct Answer: D

Solution :

\[N{{H}_{3}}\]       react      with      \[HCHO\].\[C{{H}_{3}}CHO\]and\[C{{H}_{3}}COC{{H}_{3}},\]   give   different product. (i) \[6HCHO+4N{{H}_{3}}\xrightarrow{{}}\underset{urotropine}{\mathop{{{(C{{H}_{2}})}_{6}}{{N}_{4}}}}\,+6{{H}_{2}}O\] (ii) (iii)