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JEE Advanced levelOne or more correct optionsDifficulty 3 of 3ap108

Which statements about salicylic acid are correct?

  1. AIt liberates from aqueous .
  2. BIt reacts with ethanoic anhydride to give aspirin.
  3. CWith bromine water it gives a mono-bromo product only.
  4. DIt gives a violet colour with neutral .

Answer: A, B, D

The carboxylic acid group of salicylic acid is acidic enough to release from bicarbonate, and the phenolic OH gives the violet iron complex and is acetylated by ethanoic anhydride to give aspirin. With bromine water, the strongly activated ring is brominated and the carboxyl group is lost, giving 2,4,6-tribromophenol, so the last statement is wrong.
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