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JEE Main levelSingle correct optionDifficulty 2 of 3co067

Equimolar methanal and benzaldehyde are treated with concentrated NaOH (crossed Cannizzaro reaction). Before acidification, the products are

  1. Amethanol and sodium benzoate
  2. Bsodium methanoate and sodium benzoate
  3. Csodium methanoate and phenylmethanol
  4. Dmethanol and phenylmethanol

Answer: C

Methanal is the more electrophilic aldehyde, so hydroxide adds to it first. Its adduct transfers hydride to benzaldehyde. Methanal is oxidised to and benzaldehyde is reduced to .
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