Question

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

(A) Dows process

(B) From diazonium salt

(C) By decarboxylation of salicylic acid

(D) By the decarboxylation of sodium benzoate​

Answer 1

Answer:

option D is the answer here

hope this is helpful for you

Answer 2

Phenol cannot be prepared by decarboxylation of Sodium Benzoate.

• In Dows process, chlorobenzene is treated with sodium hydroxide to produce sodium phenoxide. Phenol is produced by the acidification of sodium phenoxide.
• Diazonium salts produce phenol on hydrolysis. Along with phenol, nitrogen gas and HCl are also produced.
• Phenol is the product formed in the decarboxylation reaction of salicylic acid with soda lime.
• Sodium benzoate on decarboxylation produces benzene, not phenol (check the attachment for reaction).