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Mention the role of following : (a) SiO2 in the metallurgy of Cu. (b) CaCO3 in the metallurgy of F

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asked Dec 18, 2017 in Chemistry by sforrest072 (157,439 points) ● 61 ● 411 ● 949
edited Dec 18, 2017 by sforrest072

Mention the role of following :
(a) SiO2 in the metallurgy of Cu.
(b) CaCO3 in the metallurgy of Fe.
(c) CO in the metallurgy of iron.
(d) I2 in the purication of zirconium.

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answered Dec 18, 2017 by mdsamim (213,225 points) ● 5 ● 10 ● 15
selected Mar 1, 2018 by sanjeev
 
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[Hint :  (a) Flux
              (b) CaCO3 decomposed to CaO, which acts as flux.
              (c) Reducing agent
              (d) To form a volatile complex with Zr.]

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