Practicing Success

Target Exam

CUET

Subject

Geography

Chapter

Fundamentals of Human Geography: Secondary Activities

Question:

While making steel, ______ is added to moulded pig iron to strengthen it.

Options:

Copper

Aluminium

Manganese

Limestone

Correct Answer:

Manganese

Explanation:

Iron is extracted from iron ore by smelting in a blast furnace with carbon (coke) and limestone. The molten iron is cooled and moulded to form pig iron which is used for converting into steel by adding strengthening materials like manganese.