A) \[C{{H}_{3}}C{{H}_{2}}CON{{H}_{2}},\,\,C{{H}_{3}}C{{H}_{2}}CO{{O}^{-}}\]
B) \[C{{H}_{3}}C{{H}_{2}}COON{{H}_{2}},\,\,C{{H}_{3}}C{{H}_{2}}COOH\]
C) \[C{{H}_{3}}C{{H}_{2}}CN,\text{ }C{{H}_{3}}C{{H}_{2}}CO{{O}^{-}}\]
D) \[C{{H}_{3}}C{{H}_{2}}CN,\text{ }C{{H}_{3}}C{{H}_{2}}COOH\]
Correct Answer: D
Solution :
\[C{{H}_{3}}C{{H}_{2}}COON{{H}_{4}}\xrightarrow[-2{{H}_{2}}O]{{{P}_{2}}{{O}_{5}}}C{{H}_{3}}C{{H}_{2}}CN\] \[\xrightarrow{{{H}^{+}}/{{H}_{2}}O}\underset{propanoic\,acid}{\mathop{C{{H}_{3}}C{{H}_{2}}COOH}}\,\] Note \[{{P}_{2}}{{O}_{5}}\] acts as a dehydrating agent.
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