Question

Hydraulic washing is also known as

Answer 1

The process of separating gangue from an ore is known as concentration of the ore. It is also called as dressing or benefaction.

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Answer 2

Hydraulic washing is also known as? => Dressing method.

A method concentrates the ore by passing it through an upward stream of water whereby all the lighter particles of gangue are separated from the heavier metal ore.