MCQ
Electronic configuration of $Cu$ and $Cu ^{+1}$
- A$3 d^{10}, 4 s^0 ; 3 d^9, 4 s^0$
- B$3 d^9, 4 s^1 ; 3 d^9 4 s^0$
- ✓$3 d^{10}, 4 s^1 ; 3 d^{10}, 4 s^0$
- D$3 d^8, 4 s^1 ; 3 d^{10}, 4 s^0$
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