Question

Assertion (A): For strong electrolytes, there is a slow increase in molar conductivity with dilution and can be represented by the equation
`wedge_m^circ = wedge_m - A  c^(1//2)`

Reason (R): The value of the constant ‘A’ for \[\ce{NaCl}\], \[\ce{CaCl2}\], and \[\ce{MgSO4}\] in a given solvent and at a given temperature is different.

Select the most appropriate answer from the options given below:

Options

• Both A and R are true and R is the correct explanation of A.

• Both A and R are true but R is not the correct explanation of A.

• A is true but R is false.

• A is false but R is true.

Answer 1

A is false but R is true.

Explanation:

`wedge_m^circ = wedge_m - A  c^(1//2)` is an incorrect equation; the correct equation is `wedge_m = wedge_m^circ - A  c^(1//2)`