HARDMCQ SINGLEIChO (Chemistry Olympiad)Inorganic ChemistryCoordination compoundsAchiever Section

What is (are) number(s) of unpaired electrons in the square planar [Pt(CN)4]2– ion?

A.zero✓ Correct

B.1

C.4

D.6

Explanation

As in the compound a strong ligand is present Hence, it will have a hybridization of 2 dsp Hence, the unpaired electrons in 5d orbital pair up to make one d orbital empty for dsp2 hybridization. Thus, there is no unpaired electron. Hence, the correct option is (a).

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