If equivalent conductance of 1 M benzoic...

If equivalent conductance of `1 M` benzoic acid is `12.8 Omega^-1 ~cm^2` and if the conductance of benzoate ion and `H^*` ion are 42 and `288.42 Omega^-1 ~cm^2` respectively, its degree of dissociation is

39%

3.9%

0.35%

0.039 %

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