COMEDK2024Evening ShiftChemistryElectrochemistryActual
Given below are 2 statements: Assertion and Reason. Choose the correct option. Assertion: When Molar conductivity for a strong electrolyte is plotted versus C ( ~mol / L )^ 1 / 2 , a straight line is obtained with intercept equal to Molar conductivity at infinite dilution for the electrolyte and Slope equal to - A . All electrolytes of a given type have the same A value. Reason: At infinite dilution, strong electroly
Options
- AAssertion is correct but Reason is incorrect statement.
- BAssertion is incorrect but Reason is correct statement.
- CBoth Assertion and Reason are incorrect statements.
- DBoth Assertion and Reason are correct and Reason is the correct explanation of Assertion.
Correct answer
A. Assertion is correct but Reason is incorrect statement.
Step-by-step solution
The molar conductivity of a strong electrolyte varies with concentration according to the Kohlrausch equation: _m = _m^ - A C . This equation represents a straight line when _m is plotted against C , where the intercept is _m^ (molar conductivity at infinite dilution) and the slope is -A . The constant A depends on the type of electrolyte (e.g., 1:1, 1:2, 2:1) and the solvent properties, meaning all electrolytes of a given type in a given solvent have the same A value. Thus, the Assertion is correct. The Reason sta