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MCQMediumJEE Main 2023 · 31 January, Shift 2Amines (Classification & Properties)

Chemistry Question from JEE Main 2023 · 31 January, Shift 2

An organic compound [A] (C4H11NC_4H_{11}N) shows optical activity and gives N2N_2 gas on treatment with HNO2HNO_2. The compound [A] reacts with PhSO2ClPhSO_2Cl producing a compound which is soluble in KOH. The structure of A is:

  • A
    Option 1 shows a branched four-carbon primary amine with NH2 on the second carbon, corresponding to butan-2-amine (sec-butylamine), which has a chiral carbon.
  • B
    Option 2 shows a tertiary amine with nitrogen bonded to three alkyl groups including two methyl groups.
  • C
    Option 3 shows a secondary amine structure with one hydrogen and one methyl substituent on nitrogen attached to a branched alkyl group.
  • D
    Option 4 shows a straight-chain four-carbon primary amine ending with NH2, corresponding to butan-1-amine, which has no chiral carbon.

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