Question
Question: Removal of the unwanted materials like sand, clay, etc. from the ore is known as \_\_\_\_\_, \_\_\_\...
Removal of the unwanted materials like sand, clay, etc. from the ore is known as _____, ______ or _____.
A
Concentration, dressing, benefaction
B
Separation, refining, gangue
C
Magnetic separation, purification, gangue
D
Washing, refining, amalgamation.
Answer
Concentration, dressing, benefaction
Explanation
Solution
The process of removal of unwanted materials (gangue) from the ore is called concentration dressing or benefaction.