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QNEET-2013-Ch-1478: NEET 2013 Chemistry - Class 12 NEET-2013-Ch-1478 Solution: A magnetic moment at 1.73 BM will be shown by one among of the…

A magnetic moment at 1.73 BM will be shown by one among of the following

TiCl_4

[CoCl_6]^{4-}

[Cu(NH_3)_4]^{2+}

[Ni(CN)_4]^{2-}

Multiple Choice Options

A TiCl 4
B [CoCl 6 ] 4 $-$ _
C [Cu(NH 3 ) 4 ] 2+
D [Ni(CN) 4 ]2 $-$ _

Step-by-Step Verified Solution

For _ = 1.73 B.M. n will be : 1.73 = n ( n + 2 ) _ n = 1 In [Cu(NH 3 ) 4 ] 2+ . Cu +2 = [Ar]3d 9 NH 3 = Strong field ligand Here, unpaired electron gets excited to higher energy level but it still remains unpaired.

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