p-Block elementsHard

Question

Which of the following is oxidised by O3 ?

Options

A.K2MnO4
B.Fe2(SO4)3
C.KMnO4
D.K2Cr2O7

Solution

Mn is in +6 oxidation state and can be oxidised to +7, remaining salts can not be oxidised as central  atoms are in their highest oxidation states.

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