Which of the following reaction is involved in the extraction of copper by the besemer process?

Options

A. `Cu_(2)O +Zn rarr ZnO + 2Cu`
B. `Cu_(2)O + C rarr CO + 2Cu`
C. `Cu_(2)S +O_(2) rarr SO_(2) + 2Cu`
D. `Cu_(2)S + 2Cu_(2) O rarr SO_(2) + 6Cu`

Answer

d

Explanation

The method of monoxidation is used to extract copper from its salphide ore
`2Cu_(2)S + 3O_(2) rarr 2O_(2)O + 2SO_(2)`
`Cu_(2)S + 2Cu_(2) O rarr 6Cu + SO_(2)`
This process is also called nutreduction precess or air reduction process .The sulphide ores of less electropositive metals like `Hg,Pb, Cu,etc `are heated in air as to cravert path of the one into oxide or salphate which than reach with the remaning sulphate ore to give the metal and sulphur dioxide no axtranal reducing agents is used is used in this process .Extraction of mercury from cimathar process
`2H gS + 3O_(2) rarr 2HgO + 2 SO_(2)`
`2HgO + HgS rarr 3Hg + SO_(3)`
extraction of lead from galets oxe
` 2PbS + 3 O_(2) rarr 2PbO + 2 SO_*(2)`
` 2PBoUO + Pbs rarr 3 Pb + SO_(2)`