Question

Which of the following statement(s) is/are true?

• A. The equivalent conductance of strong and weak electrolytes increases on dilution.
• B. The increase in equivalent conductance of strong and weak electrolytes on dilution is due to increase in number of ions.
• C. If $C{H}_{3}COOH\left(aq\right)$ is separated from pure water by semipermeable membrane, then equivalent conductance of solution increases gradually and ultimately becomes constant.
• D. (B) and (C) both are incorrect.

Answer 1

Answer: (A), (D)

The equivalent conductance of strong and weak electrolytes increases on dilution.
(B) and (C) both are incorrect.

Statement $B$ is true for weak electrolytes only and in case of $C$, osmosis never stops so dilution on solution side continues and no limiting value of equivalent conductance of solution is obtained.

So, options B and C are incorrect.

On dilution, equivalent conductance increases irrespective of the type of electrolyte. Hence, option A is correct