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Molar conductance of 2 M H(2)A acid is 1...

Molar conductance of 2 `M H_(2)A` acid is 10 S `cm^(2) mol^(-1)` Molar conductance of `H_(2)A` at infinit e dilution is 400 S `cm^(2) mol^(-1)` which statement is/are correct?

A

degreee of dissociation is 2.5 % and pH of solutoin is 1.3

B

Degree of dissociation is 4 and pH of solution is 1.4

C

Dissociation constatn of `H_(2)A` is `6.24xxx10^(-5)`

D

Dissociation constant of `H_(2)A` is `2.56xx10^(-4)`

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