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NTA Abhyas JEE Main2020ChemistryAldehydes and KetonesPractice

Benzene carbaldehyde is reacted with conc. NaOH solution to give the products AB . The product A can be used as a food preservative and the product B is an aromatic hydroxy compound, where − OH group is linked to sp 3 -hybridised C-atom next to benzene ring. The products A and B respectively are

Options

  1. ASodium benzoate and phenol
  2. BSodium benzoate and phenyl methanol
  3. CSodium benzoate and cresol
  4. DSodium benzoate and picric acid

Correct answer

B. Sodium benzoate and phenyl methanol

Step-by-step solution

When benzene carbaldehyde reacts with NaOH , it proceeds via Cannizzaro reaction. It is a disproportionation reaction in which half of the molecules of aldehyde are oxidised to carboxylate state and other half are reduced to alcohol state.

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