Short Answer Type
One Word AnswersWhich method of metal refining is generally used when a metal of high degree of purity is needed?
Short Answer TypeExplain the following:
Coke and flux are used in the smelting.
The phenomenon in which ore is mixed with suitable flux and coke and is heated to fusion is known as smelting. Oxide of matter obtained from nature or by calcination or roasting is reduced by a coke through smelting.
MO +C --> M + CO
During smelting the impurities are also removed. This is done by the addition of a suitable external substance known as flux. Flux reacts with impurities and forms slag which floats over the molten metal and removed.
Explain the following:
Partial roasting of sulphide ore is done in the metallurgy of copper.
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