question_answer

In the following sequence of reactions  \[C{{H}_{3}}C{{H}_{2}}OH\xrightarrow{P+{{I}_{2}}}A\xrightarrow[ether]{Mg}B\xrightarrow{HCHO}C\xrightarrow{{{H}_{2}}O}D\]. The compound D is

A) Propanal                       

B) butanal

C) \[n-\]butyl alcohol          

D) \[n-\]propyl alcohol.

Correct Answer: D

Solution :

\[C{{H}_{3}}C{{H}_{2}}OH\xrightarrow{P+{{I}_{2}}}C{{H}_{3}}C{{H}_{2}}I\]\[\xrightarrow[\operatorname{Ether}]{\operatorname{Mg}}{{\operatorname{CH}}_{3}}\underset{\overset{{}}{\mathop{(B)}}\,}{\mathop{C}}\,{{H}_{2}}MgI\xrightarrow{\operatorname{HCHO}}\]