Q40 / 160 · TS EAMCET 2018 (07 May Shift 1) · Chemistry

The order of basicity among the following nitrogen compounds is Figure

  • A
    iv $>$ i $>$ iii $>$ ii
  • B
    iii $>$ i $>$ iv $>$ ii
  • C
    ii $>$ i $>$ iii $>$ iv
  • Correct answer
    D
    i $>$ iii $>$ ii $>$ iv

Solution

Aryl amines have amine group directly attached to aromatic ring. These are weaker bases than arylalkyl amines due to involvement of lone pair of nitrogen in resonance with benzene ring which decreases the availability of lone pair of $e^{-}$ on nitrogen.

Hence, the correct answer is option: 'D'.

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