JEE · NEET Previous Year Question

Which one of the following ores is best concentrated by froth floatation method ?

Topic: JEE PYQ

Answer: C. Full step-by-step solution below.

  1. Amagnetite
  2. Bcassiterite
  3. Cgalena
  4. Dmalachite.

Correct answer: C

Solution

(c) Froth-floatation method is used for the concentration of sulphide ores. The method is based on the preferential wetting properties with the frothing agent and water. Here galena (PbS) is the only sulphide ore.

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