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The oxidation number of Cr in K(2)Cr(2)O...

The oxidation number of `Cr` in `K_(2)Cr_(2)O_(7)` is

A

`-6`

B

`+6`

C

`+2`

D

`-2`

Text Solution

Verified by Experts

`overset(+1)K_(2)overset(x)Cr_(2)overset(-2)O_(7)`
`2(+1)+2(x)+7(-2)=0`
`2x=+12 or x=+6`
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DINESH PUBLICATION-REDOX REACTIONS-Multiple Choice Question Bank(MCQB)
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