question_answer

\[C{{H}_{3}}CHO\] and \[HCHO\]give similar kind of reaction with all reagents except

A)  ammonia

B)  Fehlings solution

C)  Schiffs reagent

D)  ammonical \[AgN{{O}_{3}}\]

E)  None of the above

Correct Answer: A

Solution :

                \[C{{H}_{3}}CHO\] and\[HCHO\]give different reactions with\[N{{H}_{3}}.\] \[6HCHO+4N{{H}_{3}}\xrightarrow{{}}\] \[C{{H}_{3}}CHO-HN{{H}_{2}}\xrightarrow{{{H}^{+}}}C{{H}_{3}}-\overset{OH}{\mathop{\overset{\mathbf{|}}{\mathop{CHN{{H}_{2}}}}\,}}\,\]\[\xrightarrow{{}}\underset{\text{Imine}\,\,\text{(Schiff}\,\text{base)}}{\mathop{C{{H}_{3}}CH=NH+{{H}_{2}}O}}\,\]