Question

Statement 1: Slag is an important byproduct of iron extraction.
Statement 2: Pig iron is purified by reducing the impurities with coke.

• A. Statement 1 is true and statement 2 is false.
• B. Statement 2 is true and statement 1 is false.
• C. Both statements are true.
• D. Both statements are false.

Answer 1

The correct option is D Both statements are false.

Iron production starts with the transportation of raw materials from the mines to the plant. In the plant, iron ore is melted and mixed with limestone in a vertical shaft called a blast furnace. Coke is used to heat ore. Through this process stone waste called slag is removed and molten iron is separated. Iron in this form is called pig iron. In the next stage, pig iron is further purified by melting in the presence of oxygen, which is called oxidation.