67.
The equivalent conductivity at infinite dilution of NH4CI, NaOH and NaCI are 139.8, 214.8 and 110.6 Ω^-1 cm^2 eq^-1 respectively. Calculate equivalent conductivity (in Ω^-1 cm^2 eq^-1) at infinite dilution forb NH4OH.
A:
185.6
B:
465.2
C:
35.6
D:
244
The answer is:
D