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which of the following reactions is an example of autoreduction?

1.FeS+3/2(O2)----->FeO+SO2

2.FeO+SiO2------>FeSiO3.

3.Cu2O+1/2(Cu2S)------>3Cu+1/2(SO2).

4.Cu2S+3/2(O2)-------->Cu2O+SO2.

G Narayana Raju , 13 Years ago
Grade 12
anser 1 Answers
Sunil Kumar FP

Last Activity: 10 Years ago

reduction reaction is a type of reaction in which the oxidation number decreases
in case of 3rdreaction the oxidation number changes from +1 to 0 so the elment reduces its oxidation number
Cu2O+1/2(Cu2S)------>3Cu+1/2(SO2
in case ofFeS+3/2(O2)----->FeO+SO2 andCu2S+3/2(O2)-------->Cu2O+SO2.the oxidation number does not change it remins same

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