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ChemistryJEE Main 5 Apr 2026, Shift 2·Q21·Numerical·Easy–moderate

Coordination Compounds · Crystal field unpaired electrons

The total number of unpaired electrons present in the d3^3, d4^4 (low spin) d5^5 (high spin), d6^6 (high spin) and d7^7 (low spin) octahedral complex systems is .

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See the full 5 Apr 2026, Shift 2 paper