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Question

In potassium dichromate, K2Cr2O7, find the oxidation state of chromium?
  1. 12
  2. 6
  3. 1
  4. 3
  5. 2

A
1
B
6
C
3
D
2
E
12
Solution
Verified by Toppr

Let, X be the oxidation state of Cr in K2Cr2O7.
2(+1)+2X+7(2)=02+2X14=02X=12X=+6
Hence, the oxidation state of Cr in K2Cr2O7 is +6.

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