Question

In which of the following metals extraction, impurities are removed as slag?

• A. Al \hspace{1cm} (ii) Fe \hspace{1cm} (iii) Cu \hspace{1cm} (iv) Zn
• B. i, ii, iv only
• C. i, ii only
• D. ii, iii only

Hint:

In metal extraction, smelting is a common process where impurities are removed as slag. Focus on the metals typically involved in processes like blast furnaces for iron or copper.

Answer 1

The Correct Option is C

Metals like iron (Fe) and copper (Cu) are extracted using methods like smelting, where impurities are removed as slag. In the case of aluminum (Al) and zinc (Zn), the extraction does not typically involve slag formation in the same way as for iron and copper. Thus, the correct pairing is ii (Fe) and iii (Cu).