Extraction of Metals - Result Question 32

####32. The chemical composition of ‘slag’ formed during the smelting process in the extraction of copper is (2001,1M)

(a) Cu2O+FeS

(b) FeSiO3

(c) CuFeS2

(d) Cu2S+FeO

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Solution:

  1. Iron present in copper pyrite is removed by forming FeSiO3 as slag.


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