which is more powerful as a reducing agent
kmno4 in alkali or in acid??
2006-12-04 05:27:06 · 2 answers · asked by Jan Zam 1 in Science & Mathematics ➔ Chemistry
If you mean what you say, the answer is neither.
In (MnO4)-, the Mn has an oxidation state of +7, and it can go no higher, so (MnO4)- cannot act as a reducing agent.
If, though, you mean the opposite to what you asked, then look at the Eo values, and you will see that (MnO4)- has a more positive value in acidic solution.
2006-12-04 06:21:57 · answer #1 · answered by Gervald F 7 · 0⤊ 0⤋
Permanganate (MnO4-) is more easily reduced in an acidic solution (1.51V as compared to 0.59V in neutral/alkali). This means it is a better reducing agent in the alkali solution compared to the acidic solution (reducing agent is oxidized, weaker reduction potential).
2006-12-04 13:39:35 · answer #2 · answered by Duluth06ChE 3 · 0⤊ 1⤋