Three iron sheets have been coated separately with three metals A, B and C whose standard electrode potentials are given below. Metal A B C Iron E° -0.46V -0.66V -0.20V -0.44V Identify in which case rusting will take place faster when coating is damaged.

As iron (-0.44V) has lower standard reduction potential than C (-0.20V) only therefore when coating is broken, rusting will take place faster.

Three iron sheets have been coated separately with three metals A…

Question

Three iron sheets have been coated separately with three metals A, B and C whose standard electrode potentials are given below.

Metal	A	B	C	Iron
E°	-0.46V	-0.66V	-0.20V	-0.44V

Identify in which case rusting will take place faster when coating is damaged.