Assertion :For measuring resistance of an ionic solution, an AC source is used. Reason: Concentration of ionic solution will change if DC source is used.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Concentration of ionic solution changes on using DC current as a source of energy while on passing AC current concentration does not change. Hence AC source is used for measuring resistances.

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