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Solution


Q.

The observed magnetic moment of the complex [Mn(NCS)6]x- is 6.06 B.M. The numerical value of x is ________ .            [2023]

Ans.

(4)

Given magnetic moment value 6.06 B.M indicates that there are 5 unpaired electrons in d-orbitals of Mn.

⇒Mn2+ has five unpaired electrons

      Mn2+:[Ar]3d5

∴ In complex [Mn(NCS)6]x-, Mn would be in +2 state only if x=4.