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Assertion: Na^(+) and Al^(3+) are isoele...

Assertion: `Na^(+) and Al^(3+)` are isoelectronic but ionic radius `Al^3+` is less than that of `Na6(+)`
Reason: The magnitude of effective nuclear charge on the outershell electrons in `Al^(3+)` is greater than that of `Na^(+)`.

A

If both assertion and reason are true annd the reason is the correct explanation of assertion

B

If both assertion and reason are true but reason is not the correct explanation of assertion

C

If assertion is true but the reason is false

D

if assertion is false but the reason is true

Text Solution

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The correct Answer is:
A
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