The following data is obtained at `25^(@)C` , for an aqueous solution of NaCl
``{:("Conc.(in molarity)",0.25,0.64),(A_(m)("in" ohm^(-1)m^(2)"mol"^(-1)),0.025,0.019):}`
At `25^(@)C`, the molar conductivity of 0.49M aqueous NaCl solution is:

Options

A. `0.022 ohm^(-1) m^(2)"mol"^(-1)`
B. `0.021 ohm^(-1) m^(2)"mol"^(-1)`
C. `0.020 ohm^(-1) m^(2) "mol"^(-1)`
D. `0.213 ohm^(-1)m^(2)"mol"^(1-)`

Answer

B