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JEE Mains 27-July-2022 Shift 1 Solved Paper

Section: Chemistry
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Question : 88 of 90
 
Marks: +1, -0
In the titration of KMnO4 and oxalic acid in acidic medium, the change in oxidation number of carbon at the end point is ________.
[27-Jul-2022-Shift-1]
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