Question

The process of ore dressing is carried out to

• A. remove the silicious materials
• B. add-flux to the mineral
• C. convert the ore to oxide
• D. remove the poisonous impurities

Answer 1

The correct option is A

remove the silicious materials

Explanation for correct option
(A)remove the silicious materials

• For obtaining a particular metal, first, we look for minerals that are naturally occurring chemical substances in the earth’s crust and are obtained through mining.
• Out of many minerals in which a metal may be found, only a few are viable to be used as source of that metal. Such minerals are known as ores.
• Ore dressing is the removal of undesirable earthy and siliceous impurities (also known as gangue or matrix) from the ore.

Explanation for incorrect option

• The process of ore dressing is carried out to remove the silicious materials. Hence, options (B), (C),and (D) are incorrect.

Hence, option (A) is correct. The process of ore dressing is carried out to remove the silicious materials.