Question

Rusting of iron in moist air involves-
A. Loss of electrons by iron
B. Gain of electrons by iron
C. Neither gain nor less of electrons
D. Hydration of iron

Answer 1

Correct Answer - A
Rusting of iron in moist air involves the loss of electrons by iron. The oxidation of iron to ferrous ion takes place and a brown deposit takes place on the surface of iron.
`Fe to Fe^(+2)+2e`
Rusting is an electrochemical process.