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JEE PYQ: Coordination Compounds Question 10

Question 10 - 2021 (25 Feb Shift 2)

The spin only magnetic moment of a divalent ion in aqueous solution (atomic number 29) is ____ BM.

Show Answer

Answer: 1.73

Solution

Atomic number 29 is Cu. Cu$^{2+} \rightarrow [\text{Ar}]3d^9$. 1 unpaired electron. $\mu = \sqrt{n(n+2)} = \sqrt{3} = 1.73$ BM.


Learning Progress: Step 10 of 71 in this series