1.

Resistance of a conductivity cell filled with a solution of an electrolyte of concentration 0.1M is 100Omega . The conductivity of this solution is 1.29 S m^(-1) . Resistance of the same cell when filled with 0.02M of the same solution is 520 Omega . The molar conductivity of 0.02M solution of the electrolyte will be

Answer»

`12.4 XX 10^(-4) Sm^2. "mol"^(-1)`
`124 xx 10^(-4) Sm^2. "mol"^(-1)`
`1240 xx 10^(-4) Sm^2 . "mol"^(-1)`
`1.24 xx 10^(-4) Sm^2 ."mol"^(-1)`

Answer :B


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