Question

identify the chemical species reduced in that oxidation following chemical reaction
1. Pb+CuCl2 -----> PbCl2+Cu
2. MnO2+HCl-----> MnCl2+H2O+Cl2​

Answer 1

Answer:

In the first Reaction, the substance reduced is Cu.In the second reaction, the substance reduced iS MnO2.

Explanation:

Here, Cu undergoes change of +2 to 0 oxidation state. so it is reduced. Here, MnO2 undergoes a change of +4 to +2 oxidation state. so it is reduced.( reduction- gaining of electrons- more -ve sign)