The oxidation number of oxygen is usually …
a) +3
b) -2
c) +2
d) +1
In case of peroxide, the oxidation number of oxygen is ……….
a) -1
b) -2
c) +2
d) +1
+2 is the oxidation number of oxygen in case of …….
a) H2O2
b) H2O
c) OF2
d) CO2
Group I elements carry the oxidation number of ………..
a) -1
b) -2
c) +2
d) +1
Group II elements carry the oxidation number of ………..
a) -1
b) -2
c) +2
d) +1
Group III elements carry the oxidation number of ………
a) -1
b) -3
c) +2
d) +3
