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The equivalent conductance of M//32 solu...

The equivalent conductance of `M//32` solution of a weak monobasic acid is `8.0 mhos cm^2` and at infinite dilution is `400 mhos cm^2`. The dissociation constant of the acid is

A

`1.25 xx 10^-6`

B

`6.25 xx 10^-4`

C

`1.25 xx 10^-4`

D

`1.25 xx 10^-5`

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