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Question

Spin only magnetic moment of the following complexes

[FeC14]2,[Co(ox)3]3,MnO24


A
4.9, 0, 1.76 BM
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B
5.9, 1.73 BM
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C
1.73, 2.83, 0 BM
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D
2.83, 6,9,0 BM
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Solution

The correct option is A 4.9, 0, 1.76 BM
Ans. (1)
[FeC14]2 Contain Fe+2 in tetrahedral complex. Its configuration is eg2,1t2g1,1,1 it has 4 unpaired
electron in [Co(ox)3]3 Co+2

have configuration t2g0,0,0 eg0,0
MnO24 have Mn in +6 oxidation state and configuration of Mn is eg1,0t2g0,0,0


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