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JAMB - Chemistry (1994 - No. 25)
MnO
4(aq)
+ 8H +
(aq)
+ 5Fe
2+
→ Mn
2+(aq)
+ 4H
2
O
(I)
. The oxidation number of manganese in the above reaction changed from?
+7 to +2
+6 to +2
+5 to +2
+4 to +2
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