Question

Describe roasting. name 2 ores which are roasted before extracted metal from them

Answer 1

ROASTING:

Roasting is a process in metallurgy in which a sulfide ore is heated in air. The process may convert a metal sulfide to a metal oxide or to a free metal.

Cu2S (chalcocite) and ZnS (sphalerite) are the two ores which are roasted before extraction of metal.

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