In a process of concentration of ore, an upward stream of running water is used to wash the powdered ore. The lighter gangue particles are washed away and the heavier ores are left behind. Which method of concentration of ore is discussed in the above passage?

Question

In a process of concentration of ore, an upward stream of running water is used to wash the powdered ore. The lighter gangue particles are washed away and the heavier ores are left behind. Which method of concentration of ore is discussed in the above passage? (A) Hydraulic washing (B) Leaching (C) Magnetic separation (D) Both (a) and (b)

Tardigrade Admin · Accepted Answer

Correct answer is (a) Hydraulic washing

Q. In a process of concentration of ore, an upward stream of running water is used to wash the powdered ore. The lighter gangue particles are washed away and the heavier ores are left behind. Which method of concentration of ore is discussed in the above passage?

Hydraulic washing

Leaching

Magnetic separation

Both (a) and (b)

Correct answer is (a) Hydraulic washing