Question

Assertion (A): For strong electrolytes, there is a slow increase in molar conductivity with dilution and can be represented by the equation

\(A^\circ_ m = A_m - A\ c^{1/2}\)

Reason (R): The value of the constant ‘A’ for NaCl, \(CaCl_2\) , and \(MgSO_4\) in a given solvent and at a given temperature is different.

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

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

c. A is true but R is false.

d. A is false but R is true.

Answer 1

Correct option is : d. A is false but R is true.

\(\Lambda^\circ_m = \Lambda_m - A\ c^{1/2}\) is an incorrect equation,

the correct equation is \(\Lambda_m = \Lambda^\circ_m - A\ c^{1/2}\)