Question

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> What is the ratio of iron ore, coking coal and limestone in iron production?

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

Answer 1

The correct option is B 4 :2: 1

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> In iron production iron ore, coking coal and limestone are also used. They are required in the ratio of 4:2:1. In case of steel production, manganese is also used to harden the steel.