Question

Which of the following methods is used for concentration of iron ore?

Options

• Washing in current of water

• Froth floatation

• Dissolving the ore in water solution of NaOH or Na₂CO₃

• Electromagnetic separation

Answer 1

Washing in current of water

Explanation:

Washing in a current of water is a gravity concentration method in which lighter particles are carried away by the current and heavier (ore) particles are collected at the bottom.