Question

Fill in the blank with correct answer :-
1) ZnO + C → Zn + CO
In the above equation reduction takes place in _____ substance.​

Answer 1

Reduction takes place in Zinc Oxide(ZnO)

Since the product is reduced to Zinc (Zn)

and Oxygen(O2) is added to Carbon , forming carbon monoxide(CO)

Answer 2

Reduction takes place in - carbon.

In the given reaction, reactants namely zinc oxide represented by ZnO and carbon represented by C have atomic valency +2,-2 and 0 respectively.

In the products, carbon is converted to carbon monoxide and zinc oxide is converted to zinc.

The valency of resultant atoms in products is 0, +2 and -2 respectively.

Reduction refers to gaining of electrons, and it's clearly visible, that carbon has gained electron and hence it is reduced.