SELECT * FROM question_mgmt as q WHERE id=2094 AND status=1 SELECT id,question_no,question,chapter FROM question_mgmt as q WHERE courseId=3 AND subId=9 AND chapterId=63 and ex_no='2' AND status=1 ORDER BY CAST(question_no AS UNSIGNED)
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, VO-3
Oxidation state of V is + 5.
(ii) Chromate, CrO2-4
Oxidation state of Cr is + 6.
(iii) Permanganate, MnO-4
Oxidation state of Mn is + 7.
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