Question

Assertion: The specific conductivity of an electrolytic solution decreases with increase in dilution.

Reason: Specific conductivity is the conductance due to the ions present in 1 cm³ of the solution.

Options

• If both Assertion and Reason are CORRECT and Reason is the CORRECT explanation of the Assertion.

• If both Assertion and Reason are CORRECT but Reason is not the CORRECT explanation of the Assertion.

• If Assertion is CORRECT but Reason is INCORRECT.

• If Assertion is INCORRECT but Reason is CORRECT.

Answer 1

If both Assertion and Reason are CORRECT but Reason is not the CORRECT explanation of the Assertion.

Explanation:

The specific conductivity decreases with dilution because the number of ions per unit volume (1 cm³) decreases as the solution becomes more dilute. While it is true that specific conductivity is defined as the conductance of ions present in 1 cm³ of the solution, this definition does not explain why it decreases with dilution; it simply states what specific conductivity is.