JAMB - Chemistry (2014 - No. 20)
Zn (s) + CuSO 4(aq) → ZnSO 4(aq) + Cu (s)
In the reaction above, the oxidation number of the reducing agent changes from
In the reaction above, the oxidation number of the reducing agent changes from
0 to + 4
0 to + 2
+ 1 to + 2
+ 1 to + 3