A) \[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}COOH\]
B) \[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}-CN\]
C) \[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}-\overset{\begin{smallmatrix} OH \\ | \end{smallmatrix}}{\mathop{C}}\,-NH\]
D) None of the above
Correct Answer: B
Solution :
\[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}-\overset{\begin{smallmatrix} O \\ || \end{smallmatrix}}{\mathop{C}}\,-N{{H}_{2}}\xrightarrow[\Delta ]{{{P}_{2}}{{O}_{5}}}\]\[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}CN\] Acid amides get dehydrated upon heating with phosphorus pentoxide \[({{P}_{2}}{{O}_{5}})\] to give cyanides.
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