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An organic co...

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An organic compound (A) of molecular formula $C_{7} H_{8}$ on oxidation with air and in presence of $V_{2} O_{5}$ to form (B) of molecular formula $C_{7} H_{6} O$ . (B) on reduction with lithium aluminum hydride to form (C) of molecular formula $C_{7} H_{8} O$ . Identify (A), (B) and (C) and explain the reactions.

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Solution

$C_{7} H_{8} A a i r \to V_{2} O_{5} C_{7} H_{6} O B L i A l H_{4} \to C_{7} H_{8} O C$
$C_{6} H_{5} C H O B [H^{-}] \to C_{6} H_{5} C H_{2} O H C$
Benzaldehyde reduces to benzyl alcohol by $N a B H_{4}$ or $L i A l H_{4}$ .
A
is $C_{7} H_{8}$ $\to$
$C_{6} H_{5} C H_{3}$
Toluene
B
is $C_{7} H_{6} O$ $\to$
$C_{6} H_{5} C H O$
Benzaldehyde
C
is $C_{7} H_{8} O$ $\to$
$C_{6} H_{5} C H_{2} O H$
Benzylalcohl

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