In the reaction,2Cu2O+Cu2 S⟶6Cu+SO2, sulphur of Cu2 S helps copper both in Cu2 S itself and Cu2O to decrease its oxidation number; therefore, sulphur of Cu2 S is
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a
oxidant
b
reductant
c
complexing agent
d
None of the above
answer is B.
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Detailed Solution
In the reaction,2Cu2O+Cu2 S⟶6Cu+SO2sulphur of Cu2 S acts as reductant because it decreases the oxidation number of copper
In the reaction,2Cu2O+Cu2 S⟶6Cu+SO2, sulphur of Cu2 S helps copper both in Cu2 S itself and Cu2O to decrease its oxidation number; therefore, sulphur of Cu2 S is