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51.	(a) Write an example for a metal which can be refined by liquation?(b) What is calcination?
Answer» (a) Tin/ Lead. (b) Calcination is the process of conversion of metals into their oxides at high temperature in absence of air or limited supply of air to remove the volatile impurities.

51.

(a) Write an example for a metal which can be refined by liquation?(b) What is calcination?

Answer»

(a) Tin/ Lead.

(b) Calcination is the process of conversion of metals into their oxides at high temperature in absence of air or limited supply of air to remove the volatile impurities.

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