The element chromium (Cr) has its oxidation number in K2Cr2O7: - Study24x7
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Goraksha Dadhich
30 Jan 2020 04:50 PM study24x7 study24x7

The element chromium (Cr) has its oxidation number in K2Cr2O7:

A

+ 6 

B

- 2

C

+ 7 

D

- 7

SSC Banking UPSC
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