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Question:

The major product obtained on interaction of phenol with sodium hydroxide and carbon dioxide is: Benzoic acid, Salicylaldehyde, Salicylic acid, Phthalic acid

Salicylaldehyde

Phthalic acid

Salicylic acid

Benzoic acid

Solution:

The reaction is called as Kolbe's reaction. It is an electrophilic substitution reaction which takes place in presence of phenol, sodium hydroxide, and carbon dioxide.