Assertion (A): Molar conductivity of $\text{0}{\text{.1 M NH}}_{\text{4}}\text{OH}$ solution is less than that of $\text{0}{\text{.001 M NH}}_{\text{4}}\text{OH}$ solution.

Reason (R) : Dilution increases the degree of ionisation of ${\text{NH}}_{\text{4}}\text{OH}\text{.}$