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Match column I and column II for the oxi...

Match column I and column II for the oxidation states of the central atoms.

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The correct Answer is:
`A.to(4)" "B.to(5)" "C.to(3)" "D.to(1)`
`A.to(4)" "B.to(5)" "C.to(3)" "D.to(1)`
Suppose that x be the oxidation states of central atoms
A. Oxidation number of Cr in `Cr_(2)O_(7)^(2-)`
`2x+7(-2)=-2`
`2x-14=-2`
`2x=+12`
`x=+6`
B. Oxidation number of Mn in `MnO_(4)^(-)`
`x+4(-2)=-1`
`x-8=-1`
`x=+7`
C. Oxidation number of V in `VO_(3)^(-)`
`x+3(-2)=-1`
`x-6=-1`
`x=+5`
D. Oxidation number of Fe in `FeF_(6)^(3-)`
`x+6(-1)=-3`
`x-6=-3`
`x=+3`
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Match Column I with Column II for the oxidation states of the central atoms . {:("Column I","Column II"),((i) Cr_2O_7^(2-),(a)+3),((ii) MnO_4^(-),(b)+4),((iii) VO_3^(-),(c)+5),((iv) FeF_6^(3-),(e)+7):}

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Match Column I with Column II