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Assertion: The first ionisation enthalpy...

Assertion: The first ionisation enthalpy of aluminium is lower than that of magnesium.
Reason : Ionic radius of aluminium is smaller than that of magnesium.

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

Verified by Experts

The correct Answer is:
B
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