Q45 / 150 · MHT CET 2009 · Chemistry

Negative inductive effect is shown by

  • A
    $-\mathrm{CH}_{3}$
  • B
    $-\mathrm{CH}_{2} \mathrm{CH}_{3}$
  • Correct answer
    C
    $-\mathrm{NH}_{2}$
  • D
    $\left(\mathrm{CH}_{3}\right)_{2} \mathrm{CH}-$

Solution

Among the given, $-\mathrm{CH}_{3},-\mathrm{CH}_{2} \mathrm{CH}_{3}$ and $\left(\mathrm{CH}_{3}\right)_{2} \mathrm{CH}-$ being electron releasing, increase the electron density, so exhibit positive inductive effect while $-\mathrm{NH}_{2}$ exhibits negative inductive effect.

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

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