Q. According to Kohlrusch law, the limiting value of molar conductivity of an electrolyte $A_{2} B$ is

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A

$λ_{i^{+}}^{\infty} + λ_{B^{- 2}}^{\infty}$

B

$\frac{1}{2} λ_{A^{+}}^{\infty} + λ_{B^{- 2}}^{\infty}$

C

$2 λ_{A^{+}}^{\infty} + \frac{1}{2} λ_{B^{- 2}}^{\infty}$

D

$2 λ_{A^{+}}^{\infty} + λ_{B^{- 2}}^{\infty}$

Solution:

$A_{2} B \to 2 A^{+} + B^{- 2}$