The number of alcoholic $-\mathrm{OH}$ and $-\mathrm{COOH}$ group in citric acid respectively are

The number of alcoholic $-\mathrm{OH}$ and $-\mathrm{COOH}$ group in citric acid respectively are
  1. 2 and 1
  2. 3 and 1
  3. 1 and 3
  4. 1 and 2

Asked in: MHT CET 2022 (07 Aug Shift 1)

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