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Q.

Phenol can be prepared from

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a

4) All

b

2) Chlorobenzene

c

3) Sodium benzene sulfonate

d

1) Benzene diazonium chloride

answer is D.

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Detailed Solution

Given data:It is given to identify from which phenol can be prepared 

Explanation:

The procedure of acidifying sodium salt results in phenol. A diazonium salt is formed by reacting an aromatic primary amine with nitrous acid (NaNO2+ HCl) at 273-278 K. By heating diazonium salts in water or subjecting them to weak acids, phenols are produced as a byproduct. Phenol is created from a hydrocarbon called cumene.

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Hence, correct option is: (D) All

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