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(C) The dissociation of an $AB_3$ type electrolyte is given by: $AB_3 \rightarrow A^{3+} + 3B^{-}$.According to Kohlrausch's law of independent migrat

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$\lambda_{A^{3+}}^{\circ} + 3 \lambda_{B^{-}}^{\circ}$

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(C) The dissociation of an $AB_3$ type electrolyte is given by: $AB_3 ightarrow A^{3+} + 3B^{-}$.According to Kohlrausch's law of independent migration of ions,the molar conductivity at infinite dilution $(\Lambda_m^{\circ})$ is the sum of the molar conductivities of the constituent ions multiplied by their respective stoichiometric coefficients.Therefore,$\Lambda_m^{\circ} = 
u_{+} \lambda_{+}^{\circ} + 
u_{-} \lambda_{-}^{\circ}$.Here,$
u_{+} = 1$ (for $A^{3+}$) and $
u_{-} = 3$ (for $B^{-}$).Thus,$\Lambda_m^{\circ} = \lambda_{A^{3+}}^{\circ} + 3 \lambda_{B^{-}}^{\circ}$.

Which of the following expressions represents the molar conductivity of an $AB_3$ type electrolyte?

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