KEAM 2022 Physics and Chemistry Solved Paper

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Question : 100 of 120

Marks: +1, -0

Both Cr2+ and Mn3+ have d4 configuration. Which one of the following is true?

Mn3+ is a reducing agent but Cr2+ is an oxidising agent
Mn3+ is an oxidising agent but Cr2+ is a reducing agent
Both Mn3+ and Cr2+ are oxidising agents
Both Mn3+ and Cr2+ are reducing agents
Both Mn3+ and Cr2+ are neither reducing nor oxidising agents

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