Statement-1: 1st and 2nd ionisation enthalpies in the first series of transition elements vary irregularly. Statement-2: Variati

Statement-1: 1st and 2nd ionisation enthalpies in the first series of transition elements vary irregularly.
Statement-2: Variation depends on the stability of d-configuration.
A. Statement-1 is true, statement-2 is true, statement-2 is a correct explanation for statement-1.
B. Statement-1 is true, statement-2 is true, statement-2 is NOT a correct explanation for statement-1
C. Statement-1 is true, statement-2 is false.
D. statement-1 is false, statement-2 is true.

Statement-1: 1st and 2nd ionisation enthalpies in the first series of transition elements vary irregularly. Statement-2: Variation depends on the stab

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