Periodic TableHard

Question

Of the following sets which one does NOT contain isoelectronic species?

Options

A.PO₄^-3, SO₄^-2, ClO₄^-

B.CN^-, N₂, C₂^-2

C.SO₃^-2, CO₃^-2, NO₃^-

D.BO₃^-3, CO₃^-3, NO₃^-

Solution

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