MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Inorganic ChemistryGOCPrevious Year Questions

Which of the following species is paramagnetic in nature? (CMC 2010)

A.Carbonium ion

B.Free radical✓ Correct

C.Carbene

D.Nitrene

Explanation

A free radical contains one unpaired electron while carbene, carbanions or carbocations contains all the paired electrons. Therefore, it is paramagnetic in nature. Thus, the correct option is (b) Free radical.

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