Q. The oxidation state of chromium in K₂Cr₂O₇ is:
✅ Correct Answer: (C)
+6
Explanation: Let oxidation state of Cr be x. 2(+1) + 2x + 7(-2) = 0, therefore x = +6.
Explanation by: Jyoti
Let oxidation state of Cr be x. 2(+1) + 2x + 7(-2) = 0, therefore x = +6.