AP EAMCET Medical 2018 Shift 2 Paper

At T(K) the molar ionic conductivities of NH4 and OH− at infinite dilution are 72 and198 S cm2mol−1 respectively. The molar conductivity of 0.01M NH4OH solution at the same temperature is found to be 9 S cm2mol−1. The percentage dissociation of NH4OH at this concentration is