MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Inorganic Chemistryd and f Block elementsOther Compounds of d-block Elements

The value of magnetic moment ( spin only) for Cu2+ in CuSO4.5H2O is

A.5.92 BM (b) 4.92 BM

C.2.83 BM (d) 1.73 BM

Explanation

Cu2+has the configuration 9 0 3d 4s , it has 1 unpaired electrons. The spin only magnetic moment can be calculated as: 2 n n , where n is the number of unpaired electrons. Here, number of unpaired e- (Value of n) 1 . Thus, the magnetic moment will be: 1 1 2 3 1.73 BM

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