The conductivity of a 0.05 M solution of...

The conductivity of a 0.05 M solution of a weak monobasic acid is `10^(-3) 5 cm^(-1)`, If `lambda_(m)^(oo)` for weak acid `500 5cm^(2) "mol"^(-1)`, calculate Ka of weak monobasic acid :

`8 xx 10^(-5)`

`4xx 10^(-6)`

`16 xx 10^(-7)`

`14 xx 10^(-8)`

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