Cu2S s O2 g 2CU s SO22 g - JAMB Chemistry 2015 Question
Cu2S(s) + O2(g) = 2CU(s) + SO22(g)
A
+1 to 0
B
0 to +2
C
+2 to +1
D
0 to +1
correct option: a
The oxidation number is from h to O as a result of release of sulphur. Option B, C, D are not the actual oxidation number for copper
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