Questions
Which of the following reduction reactions are actually employed in commercial extraction of metals?
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a
Fe2O3+2Al→Al2O3+2Fe
b
Cr2O3+2Al→Al2O3+2Cr
c
2NaAu(CN)2+Zn→Na2Zn(CN)4+2Au
d
Cu2S+Pb→Cu+PbS↓
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Correct option is B
alumino thermit process is only for weilding purpose not for extractionTalk to our academic expert!
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