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Match each electronic change in Column-I with its correct characteristic(s) in Column-II. Column-I (Processes) (A) N2+ -> N2 (B) Zn2+ -> Zn (C) O2²- -> 2 O²- (D) C2²- -> C2 Column-II (Characteristics) (P) Magnetic moment gets changed (Q) The process involves a two-electron change (R) Magnetic behaviour gets changed (S) The electron(s) involved enter a pi*2p orbital (T) The electron(s) involved go into/through a sigma2p orbital

1. A-P, B-Q, C-R, D-S
2. A-Q, B-R, C-S, D-T
3. A-R, B-S, C-T, D-P
4. A-S, B-T, C-P, D-Q

Correct answer: A-P, B-Q, C-R, D-S

Solution

N2+ (paramagnetic) to N2 (diamagnetic) changes the magnetic moment; Zn2+ to Zn is a two-electron change; the peroxide-to-oxide and C2 changes alter magnetic behaviour and involve pi*2p occupancy respectively.

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