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