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Question

To prepare phenol from halobenzene, which process is useless?

A
Grignard
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B
Raschig
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C
Dow
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D
Schiff
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Solution

The correct option is D Schiff
Grignard reagent is use to form phenol.

Raschig is an industrial process to prepare phenol by hydrolysing chlorobenzene.

Dow's process:Benzene can be easily converted to chlorobenzene by electrophilic aromatic substitution which on hydrolysis gives phenol.

Hence,option D is correct.

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