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Name the oxometal anions of the first se...

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.

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i.Dichromate ion .(Cr)_(2) (O)_(7)^(2-). and ćhromate ion .(CrO)_(4)^(2-). in oxidation state of(Cr), is(VI) and its group no. is also 6 . ii. .(MnO)_(4)^(-):. Permanganate ion. Here oxidation state of .(Mn)
VII and its group no. is 7 .
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V PUBLICATION-THE d- AND f- BLOCK ELEMENTS-QUESTION BANK
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