JEE Advanced 2016 Paper 2

Section: Chemistry

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Question : 27 of 54

Marks: +1, -0

Extraction of copper from copper pyrite (CuFeS‌2) involves

[JEE Adv 2016 P2]

crushing followed by concentration of the ore by froth-flotation
removal of iron as slag
self-reduction step to produce 'blister copper' follwoing evolution of SO‌2
refining of 'blister copper' by carbon reduction

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