Question

What is the approximate ratio of roasted ore, coke, and lime stone respectively in the charge to be added into the blast furnace for extraction of iron?

• A. 5:12:3
• B. 12:3:5
• C. 12:5:3
• D. 5:3:12

Hint:

In blast furnace reactions, the appropriate ratios of raw materials like roasted ore, coke, and limestone are essential for the efficient extraction of iron.

Answer 1

The Correct Option is C

Step 1: Understanding the components used in blast furnace.
In the blast furnace, the approximate ratio of roasted ore, coke, and limestone used for the extraction of iron is as follows:
- Roasted ore: 12 parts
- Coke: 5 parts
- Limestone: 3 parts
Step 2: Conclusion.
The correct answer is (C) 12:5:3.