MCQ
The ionisation of weak base $\text{MOH}$ can be represented by equation, $\text{MOH}(\text{aq})\rightleftharpoons\text{M}^+(\text{aq})+\text{OH}^-(\text{aq});$
$\text{K}_{\text{b}}=\frac{[\text{M}^+][\text{OH}^-]}{[\text{MOH}]}$ where, $K_b$ is represented as:
  • A
    Acidic ionisation constant.
  • Basic ionisation constant.
  • C
    Ionic product of water.
  • D
    Both $(a)$ and $(b).$

Answer

Correct option: B.
Basic ionisation constant.
The equilibrium constant for basic ionization called basic ionization constant and is represented by $\ce{K_b}$.
$\text{K}_{\text{b}}=\frac{[\text{M}^+][\text{OH}^-]}{[\text{MOH}]}$

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