Which of the following is the purest form of iron? A. Cast iron B. Wrought iron C. Mild steel D. High carbon steel

Cast iron
Wrought iron
Mild steel
High carbon steel

The correct answer is: Wrought iron.

Wrought iron is the purest form of iron. It is made by repeatedly heating and hammering pig iron until the impurities are removed. Wrought iron is a soft, ductile metal that is easily worked and welded. It is used in a variety of applications, including making nails, chains, and other hardware.

Cast iron is a type of iron that is made by melting pig iron and pouring it into a mold. Cast iron is a hard, brittle metal that is not easily worked. It is used in a variety of applications, including making cookware, engine blocks, and other castings.

Mild steel is a type of steel that is made by adding a small amount of carbon to iron. Mild steel is a strong, ductile metal that is easily worked. It is used in a variety of applications, including making beams, plates, and other structural components.

High carbon steel is a type of steel that is made by adding a large amount of carbon to iron. High carbon steel is a hard, strong metal that is not easily worked. It is used in a variety of applications, including making tools, knives, and other cutting tools.