Cr in K₂Cr₂O₇ has +6 oxidation state.
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JEE Main 2022 — Chemistry Inorganic Chemistry
medium
mcq
2022
Official previous-year question
Verified 30 May 2026.
Question
The oxidation state of Cr in K₂Cr₂O₇ is
Options
- A+3
- B+6
- C+7
- D+2
Solution
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