Assertion :The mobility of sodium ion is lower than that of potassium ion. Reason: The ionic mobilities depend upon the effective radius of the ion.

Read the above assertion and reason and choose the correct statement regarding it.

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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Assertion is incorrect but Reason is correct

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
The ionic mobilities depend on the effective radius of the ion. Higher is the effective radius, lower will be the ionic mobility.
The effective radius of sodium is higher than that of potassium. The mobility of sodium ion is lower than that of potassium ion.
Here, both Assertion and Reason are correct and Reason is the correct explanation for Assertion.

So, the correct option is ( A )

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Assertion :The mobility of sodium ion is lower than that of potassium ion. Reason: The ionic mobilities depend upon the effective radius of the ion.Read the above assertion and reason and choose the correct statement regarding it.

Assertion :The mobility of sodium ion is lower than that of potassium ion. Reason: The ionic mobilities depend upon the effective radius of the ion.

Read the above assertion and reason and choose the correct statement regarding it.