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Question: Answered & Verified by Expert
Potassium dichromate acts as a strong oxidizing agent in acidic solution. During this process, the oxidation state changes from
Chemistryd and f Block ElementsJEE MainJEE Main 2023 (25 Jan Shift 2)
Options:
  • A +3 to +1
  • B +6 to +3
  • C +2 to +1
  • D +6 to +2
Solution:
1643 Upvotes Verified Answer
The correct answer is: +6 to +3

Dichromate oxidises to Cr3+ from Cr2O72- in acidic medium according to the reaction.

In dichromate, chromium is in +6 oxidation state and on the right hand side we have Cr in +3 state. So, the change is from +6 to +3 in acidic medium. 

 

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