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Question

Which of the following process(s) occur(s) during the extraction of copper from chalcopyrites?

A
froth floatation
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B
roasting
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C
bessemerisation
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D
leaching
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Solution

The correct options are
A froth floatation
B roasting
C bessemerisation
In the extraction of copper, following methods are used
froth floatation
roasting
smelting
bessemerisation and
electrolytic refining

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