Oxidation number of Cr in K 2 Cr 2 O...

Oxidation number of Cr in ` K_ 2 Cr _ 2 O _ 7, CrO _ 5 and Cr _ 2 (SO _ 4 ) _ 3 ` respectively, is -

A

`+6,+10,+3`

B

`+6,+4,+6`

C

`+6,+6,+3`

D

`+6,+3,+3`

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The correct Answer is:

C

`+6,+6,+3`

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