Question

Question-3
In the equations given below, state giving reasons, whether substances have been oxidised or reduced.
(i) PbO + CO –> Pb + CO2
(ii) H2S + Cl2–>2HCl + S.​

Answer 1

Answer:

i) Pb is reduced as it is the removal of oxygen. And CO2 is oxidised as oxygen is added.

ii) HCl is oxidised as oxidation is removal of hydrogen.

Explanation:

Hope this helps you.

Answer 2

Answer:

Answer:1) Pb is reduced as it is the removal of oxygen. And CO2 is oxidised as oxygen is added. 2)Hcl is oxidised as oxidation is removal of hydrogen. 3)It is a redox reaction.As H2S is is oxidised andCl2 is reduced.