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The magnetic moment (spin only) of [NiCl4]2– is

(a) 1.82BM 

(b) 5.46BM

(c) 2.82BM 

(d) 1.41BM

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(c) : In the paramagnetic and tetrahedral complex [NiCl4]2–, the nickel is in +2 oxidation state and the ion has the electronic configuration 3d8. The hybridisation scheme is as shown in figure.

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