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The refining method used when the metal and the impurities have low and high melting temperatures, respectively is:
Option: 1 vapour phase refining
Option: 2 distillation
Option: 3 liquation
Option: 4 zone refining

Answers (1)


As we have learnt,


Liquation -

In this method, a low melting metal like a tin can be made to flow on a sloping surface. In this way, it is separated from higher melting impurities.


Liquation, a technique for separating constituents of ore, a metal or an alloy by partial melting. When the material is heated to a temperature where one of the constituents melts and the other remains solid, the liquid constituent can be drained off. 


Therefore, Option(3) is correct.

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Ritika Jonwal

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