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Question

The major product obtained on interaction of phenol with sodium hydroxide and carbon dioxide is?
  1. benzoic acid
  2. salicylaldehyde
  3. salicylic acid
  4. phthalic acid

A
phthalic acid
B
salicylaldehyde
C
salicylic acid
D
benzoic acid
Solution
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Reaction of phenol with sodium hydroxide and carbon dioxide is Kolbe's Schmidt reaction that is a electrophilic substitution reaction resulting in the formation of salicylic acid as shown in the reaction.
The major product obtained on interaction of phenol with sodium hydroxide and carbon dioxide is salicylic acid.

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