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JEE Main levelSingle correct optionDifficulty 2 of 3si054

An amine gives a sulphonamide with benzenesulphonyl chloride that is insoluble in aqueous KOH, and gives a yellow oily compound with . The amine is

  1. Abenzylamine
  2. BN-methylaniline
  3. C2-methylaniline
  4. D4-methylaniline

Answer: B

A sulphonamide insoluble in alkali (no acidic N-H) and a yellow oily N-nitrosamine both indicate a secondary amine. N-Methylaniline is secondary; the other three are primary and would give alkali-soluble sulphonamides.
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