A smuggler could not carry gold by depositing iron on gold surface since

Options

A. gold has higher standard reduction potential than iron
B. gold has lower standard reduction potential than iron
C. gold is denser
D. iron rusts

Answer

A

Explanation

A smuggler could not carry gold by deposting iron on gold surfase. We know that greater is the standard electrode potential of an electrode, the more is the tendency of its ion to get induced. Since the standard reduction potential of `Au^(3+)//Au` is greater than `Fe^(2+)//Fe`, iron cannot be deposited on gold by electroplating.