JEE MAIN - Chemistry (2016 - 9th April Morning Slot - No. 9)
Which one of the following species is stable in aqueous solution?
Cr2+
Cu+
MnO$$_4^{3 - }$$
MnO$$_4^{2 - }$$
Explanation
MnO42− disproportionate as (in neutral or acidic solution)
3MnO42− + 4H+ → 2MnO42− + MnO2 + 2H2O
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