Which among the following is not a method for | vedclass

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(D) The preparation of phenol involves specific industrial and laboratory methods. $A$. Aniline can be converted to phenol via benzene diazonium chlor

Vedclass · Accepted Answer

Benzene + conc. $H_2SO_4 \xrightarrow{\Delta}$ Phenol

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(D) The preparation of phenol involves specific industrial and laboratory methods. $A$. Aniline can be converted to phenol via benzene diazonium chloride (diazotization followed by hydrolysis). This is a standard method. $B$. Cumene oxidation is the most common industrial method for producing phenol. $C$. The Dow process involves the reaction of chlorobenzene with $NaOH$ at high temperature and pressure to form sodium phenoxide,which upon acidification yields phenol. This is a standard method. $D$. Benzene reacts with concentrated $H_2SO_4$ to form benzene sulfonic acid,not phenol directly. Phenol is obtained from benzene sulfonic acid by fusion with $NaOH$ followed by acidification. Therefore,the reaction as written is incorrect.

Which among the following is not a method for the preparation of phenol?

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