A) \[{{C}_{3}}{{H}_{7}}Br+KCN\]
B) \[{{C}_{4}}{{H}_{9}}Br+KCN\]
C) \[{{C}_{3}}{{H}_{7}}OH+KCN\]
D) \[{{C}_{4}}{{H}_{9}}OH+KCN\]
Correct Answer: A
Solution :
\[{{C}_{3}}{{H}_{7}}Br+KCN\to {{C}_{3}}{{H}_{7}}CN+KBr\] In IUPAC system the carbon of functional group also take in numbering. So \[{{C}_{3}}{{H}_{7}}CN\] is butane nitrile.
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