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Question

In the following sequence of reactions,

\( H _{3} C - Br \stackrel{ KCN }{\longrightarrow} Ether \underset{ Ci LiAlH _{4} O ^{+}}{\longrightarrow} \)the product (C) is :

(AIPMT 2012 (PRE))

A
Ethyl alcohol
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B
Acetone
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C
Methane
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D
Actaldehyde
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Solution

The correct option is A Ethyl alcohol
Alkyl bromide undergoes nulceophilic substitution reaction with KCN followed by hydrolysis of CN to give COOH and further get reduced to OH group in presence of LiAlH4.
\( KCN \longrightarrow \) \( H _{3} O ^{+} \) \( H _{3} C - COOH \) (A) (B) (C)

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