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Question

In Dow's process, the starting raw material is:

A
phenol
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B
chlorobenzene
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C
aniline
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D
diazobenzene
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Solution

The correct option is B chlorobenzene
In Dow's process, firstly sodium phenoxide is obtained by the reaction of chlorobenzene with NaOH at 623 K and 200 atm, which on acid hydrolysis forms phenol. Hence the starting raw material is chlorobenzene.

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