Question

Thetechnique in which the material is heated in a sloping hearth until one of the metals starts to melt and drain away from the other is known as __

Answer 1

Liquation is a method for separating metals from an ore or alloy. The material is placed in a sloping hearth and heated. Eventually, a temperature is reached until one of the metals starts to melt and drain away from the other and can be collected.