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Question: Answered & Verified by Expert
In chromite ore, the oxidation number of iron and chromium are respectively.
Chemistryd and f Block ElementsJEE Main
Options:
  • A +3,+2
  • B +3,+6
  • C +2,+6
  • D +2,+3
Solution:
1029 Upvotes Verified Answer
The correct answer is: +2,+3
Actual composition of chromite ore(FeCr2O4) is FeO.Cr2O3. In FeO, the oxidation state of Fe is +2 while in Cr2O3, the oxidation state of Cr is +3.

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