Question

the conversion of PbO2 to Pb(NO3)2 IS

a- oxidation

b- reduction

c- neither oxidation nor reduction

d- both oxidation and reduction

Answer 1

PbO + 2HNO3 --------> Pb(NO3)2 + H2O

Lead oxide is oxidized.

Nitric acid is reduced.

Thus, it is a redox reaction.