The calculated spin only magnetic moments of [ Cr(NH _3)_6]^ 3+ and [ CuF _6]^ 3- in BM, respectively, are (Atomic numbers of Cr and Cu are 24 and 29, respectively)

JEE Advanced 2021 Chemistry question

The calculated spin only magnetic moments of and in BM, respectively, are (Atomic numbers of Cr and Cu are 24 and 29, respectively)

Answer: (A)

: is ; in an octahedral field the configuration is whatever the ligand, so and BM. : is ;

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Question ID VK-033862