Which of the following reduction reactions are actually employed in co – InterviewSolution

1.	Which of the following reduction reactions are actually employed in commercial extraction of metals?
Answer» `Fe_(2)O_(3) + 2Al rarr Al_(2)O_(3)+Fe` `Cr_(2)O_(3)+ 2Al rarr Al_(2)O_(3)+2Cr` `2Na[Au(CN)_(2)]rarr ZN rarr NA[Zn(CN)_(4)]+2Au` `Cu_(2)S + 2CuO rarr 6Cu + SO_(2)` Answer :B::C::D

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