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What is the stable ion Amon the following options in aqueous solution? 1.cr2+ 2.cu+ 3.mno43- 4.mno42- Why and how ....question attached with image for further clarity

What is the stable ion Amon the following options in aqueous solution?
1.cr2+
2.cu+
3.mno43-
4.mno42-
Why and how ....question attached with image for further clarity

Question Image
Grade:12th pass

2 Answers

Arun
25750 Points
4 years ago
Cu+ ion oxidizes and reduces simultaneously in aqueous solution to give Cu2+ and Cu ions. Therefore Cu+ ion is unstable in aqueous solution and it disproportionates readily to Cu2+ and Cu ions.
Samikshya Naik
11 Points
2 years ago
MnO4-1 is stable in aqueous state as MnO4-2 disproportionates to give MnO4-1 and MnO2
The reaction goes as follows-

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