Name the oxometal anions of the first series of the transition metals in which the metal exhibits the oxidation state equal to its group number.


(i) Vanadate (VO3-)-Oxidation state of V is + 5.


(ii) Chromate (CrO4 2-)-Oxidation state of Cr is + 6.


(iii) Permanganate (MnO4 -) Oxidation state of Mn is + 7.


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