Q35 / 180 · KCET 2020 · Chemistry

The conjugate base of $\mathrm{NH}_{3}$ is

  • A
    $\mathrm{NH}_{4}^{+}$
  • B
    $\mathrm{NH}_{4} \mathrm{OH}$
  • C
    $\mathrm{NH}_{2} \mathrm{OH}$
  • Correct answer
    D
    $\mathrm{NH}_{2}^{-}$

Solution

The conjugate base of $\mathrm{NH}_{3}$ can be obtained after removal of one hydrogen ion. $\mathrm{NH}_{3} \longrightarrow \mathrm{H}^{+}+\mathrm{NH}_{2}^{-}$ So, $\mathrm{NH}_{2}^{-}$is the conjugate base of $\mathrm{NH}_{3}$.

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

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