question_answer

The method not used in metallurgy to refine the impure metal is

A) Mond's process

B) van-Arkel process

C) Amalgamation process

D) Liquation

Correct Answer: C

Solution :

Liquation process, Mond's process and, van Arkel process are the refining processes that are applied depending upon the nature of the metal under treatment and nature of the impurities whereas amalgamation process is used for the extraction of noble metals like gold, silver, etc, from native ores. The metal is recovered from the amalgam by subjecting it to distillation, where the mercury distils over leaving behind the metal.