Question

What is the proportion of iron ore, coking coal, and limestone required in the process of extraction of iron?

• A. 1 : 1 : 1
• B. 2 : 1 : 1
• C. 3 : 2 : 1
• D. 4 : 2 : 1

Answer 1

The correct option is D 4 : 2 : 1

In the process of iron production, iron ore, coking coal, and limestone are required in the ratio of 4:2:1. In the plant, iron ore is melted and mixed with limestone in a vertical shaft called a blast furnace. Coke is used to heat the ore.