The oxoanion in which the oxidation state of the central atom is same as its group…

CHEMISTRY · Single correct · A Level · Chemistry · Oxidation, reduction and redox reactions · Oxidation, reduction and redox reactions

Problem

The oxoanion in which the oxidation state of the central atom is same as its group number in the periodic table is : (1)

\text{SO}_4^{2-}

(2)

\text{VO}_2^-

(3)

\text{MnO}_4^{2-}

(4)

\text{Cr}_2\text{O}_7^{2-}