which of the following electronts is present as the impurity to the maximum extent in the pig iron?

Options

A. Phosphorus
B. Manganese
C. Carbon
D. Silicon

Answer

C

Explanation

Iron obtained form the blast furnace is called pig iron. It constains `93%` iron, `5%` carbon and rest silicon, manganese, phosphours, etc., as impurities. The pig iron is remelted and cast or poured into moulds. This is knoen as cast iron. Hence, after remelting the pig iron becomes cast iron.