1.

The equivalent conductance of `(M)/(20)`solution of a weak momobasic acid is 10 mhos `cm^(2)` and at infinite dilution is 200 mhos `cm^(2)`. The dissociation consant of this acid is :-A. `1.25xx10^(-4)`B. `1.25xx10^(-5)`C. `1.25xx10^(-6)`D. `6.26xx10^(-4)`

Answer» Correct Answer - A
`alpha=(Delta_(m)^( c))/(Delta_(m)^(o)),K_(a)=(Calpha^(2))/(1-alpha)`


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