WBCS.LIVE practice 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?

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. Hydraulic washing
  2. Leaching
  3. Magnetic separation
  4. Both (a) and (b)

Correct answer and explanation

Correct answer: Hydraulic washing