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Amines as Nucleophiles

A C2H5Br BThe...

Question

$A a q . K O H \leftarrow ---- - C_{2} H_{5} B r a l e . K O H - ---- \to B$
The correct statement is

A

'A' is obtained by substitution reaction

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B

'B' is obtained by elimination reaction

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C

'A' is the isomer of dimethyl ether while 'B' is the dehydrated compound of 'A'

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D

All of these

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Solution

The correct option is D All of these
When the reactant is primary alkyl halide and the alc. KOH which is a strong base it prefers E2 elimination rather than substitution. It undergo dehydrohalogenation reaction.
In another reaction, the aq KOH will act as a nucleophile, so the reaction will go only by substitution.
$C_{2} H_{5} O H a q . K O H \leftarrow ---- - C_{2} H_{5} B r a l e . K O H - ---- \to C H_{2} = C H_{2}$
$C_{2} H_{5} O H$ is functional isomer of $C H_{3} O C H_{3}$

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