Which among the following metals will get corroded at the fastest rate on exposure to air and water is?
Zinc
The process of conversion of a metal into its compounds by continuous interaction with atmospheric air and water vapour is known as corrosion.
Different metals react differently with oxygen. The arrangement of metals as per reactivity series is shown below:
Zinc being the more reactive metal will react with oxygen at a faster rate than iron, copper and gold. Therefore, zinc will undergo corrosion at a faster rate.