Minerals from which metals can be extracted economically and easily are called ores. The extraction of metals from theirs ores involves the following processes. (i) Concentration (ii) Calcination |roasting | leaching (iii) Reduction. It is carried out by one of the following methods. (a) Carbon |carbon monoxide reduction.(b) Self reduction. (c) Electrolytic reduction. (d) Reduction by more electropositiv metal (i.e displacement method). Silver is extracted from its native ore by:

Minerals from which metals can be extracted economically and easily ar

1.	Minerals from which metals can be extracted economically and easily are called ores. The extraction of metals from theirs ores involves the following processes. (i) Concentration (ii) Calcination \|roasting \| leaching (iii) Reduction. It is carried out by one of the following methods. (a) Carbon \|carbon monoxide reduction.(b) Self reduction. (c) Electrolytic reduction. (d) Reduction by more electropositiv metal (i.e displacement method). Silver is extracted from its native ore by:
Answer» FORMATION fo solubel COMPLEX by dilute SOLUTION of NACN in PRESENCE of air followed by the reduction with zinc Formation of soluble complex by dilute solution of NaCN in absence of air followed by the reduction with zinc roasting followed by the self reduction. roasting followed byelectrolytic reduction. Answer :a