1.

Assertion : First ionisation enthalpy of Galium is higher than aluminium. Reason : Weak sheliding effect of 3d subshell is Galium.

Answer»

If both ASSERTION & Reason are TRUE and the reason is the correctexplanation of the assertion.
If both Assertion & Reason are true but the reason is not the correctexplanation of the assertion.
If Assertion is true statement but Reason is FALSE.
If both Assertion and Reason are false statements.

Answer :A


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