1.

Explain the following terms:(a) flux (b) gangue (c) slag (d) smelting

Answer»

(a) Flux: A flux is a substance that is added to the charge in a furnace to remove the gangue.

(b) Gangue: Earthly impurities including silica, mud etc., associated with the ore are called gangue.

(c) Slag: It is the fusible product formed when flux reacts with impurities during the extraction of metals.

(d) Smelting: Smelting is the process of reducing the roasted oxide ore and removing the gangue with the help of an appropriate flux added with the ore.



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