Molar ionic conductivities of a bivalent electrolyte are 57 and 73. The molar conductivity of the solution will be

Options

A. 130 S `cm^2` `mol^(-1)`
B. 65 S `cm^2` `mol^(-1)`
C. 260 S `cm^2` `mol^(-1)`
D. 187 S `cm^2` `mol^(-1)`

Answer

A

Explanation

`lambda_m-lambda_(Cation)+lambda_(Anion)=57+73=130 S cm^2mol^(-1)`