Which among the following is obtained as a product when phenol is treated with $\mathrm{NaOH}$ and…

Which among the following is obtained as a product when phenol is treated with $\mathrm{NaOH}$ and $\mathrm{CO}_2$ followed by acid hydrolysis?
  1. Phthalic acid
  2. Benzoic acid
  3. Salicyalaldehyde
  4. Salicylic acid

Asked in: MHT CET 2022 (06 Aug Shift 2)

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