Assertion(A) `Lambda_(m)` for weak electrolytes shows a sharp increase when the electrolytic solution is diluted.
Reason(R) For weak electrolytes degree of dissociation increases with dilution of solution.

Options

A. Both A and R are true but R is NOT 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 and R is True

Answer

A

Explanation

Weak electrolytes dissociate partialy in concentrated solution. On dilution, their degree of dissociation of dissociation increases hence, their `wedge_(m)` increases sharply.