Among CrO, Cr2O3 and CrO3, the sum of spin-only magnetic moment values of basic and amphoteric oxide — JEE Mains Chemistry Past Papers Chemistry Question
Question
Among CrO, Cr2O3 and CrO3, the sum of spin-only magnetic moment values of basic and amphoteric oxides is ______ 10–2 BM (nearest integer). (Given atomic number of Cr is 24)
Answer: .
💡 Solution & Explanation
CrO Basic oxide Cr2O3 Amphoteric oxide In CrO, Cr exist as Cr+2 and have only = 4.90 In Cr2O3, Cr exist as Cr+3 and have only = 3.87 Sum of spin only magnetic moment = 4.90 + 3.87 = 8.77 only = 877 × 10–2 Ans. 877
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