HARDMCQ SINGLEIChO (Chemistry Olympiad)Inorganic ChemistryCoordination compoundsAchiever Section

Among [NiCO)4], [NiCl4]2–, [Co(NH3)4Cl2] Cl, Na3 [CoF6], Na2O2 and CsO2, the total number of paramagnetic compounds is

A.2

B.3✓ Correct

C.4

D.5

Explanation

Paramagnetic compounds are those compounds which have one or more unpaired electrons. Among the following compounds contains unpaired electrons Hence, they are paramagnetic compounds. Hence, the correct answer is option (b).

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