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Solution


Q.

Potassium dichromate acts as a strong oxidizing agent in acidic solution. During this process, the oxidation state changes from       [2023]
1 +6 to +3  
2 +6 to +2  
3 +3 to +1  
4 +2 to +1  

Ans.

(1)

Cr+62O7-2 → H+  Cr+3