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

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

A

`+4`

B

`+3`

C

`+6`

D

`+5`

Verified by Experts

The correct Answer is:

C

`K_(2)Cr_(2)O_(7)`
Let the oxidation state of Cr is x.
`2(+1)+2xx+7(-2)=2+2xx-14=0`
`2xx-12=0,x=+6`

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