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In the exteraction of copper from its sulphide ore, the metal is fanally obtained by the reduction of caprous oxide withA. copper (1) sulphideB. sulphide dioxiodeC. iron(II) salphideD. carbon monoxide |
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Answer» Correct Answer - a `4CuFeS_(2)(s) + 9O_(2)(g) overset(Delta) To 2Cu_(2)S(l) + 6SO_(2)(g) + 2Fe_(2)O(s)` ` 2Cu_(2)S(l) + 3O_(2)(g) rarr 2Cu_(2)O(s) + 3SO_(2)(g)` The mixture of copper (1) oxide and copper (1) sulphide then undergoes an unusual redox reaction (called self-reduction ) to give imkpure copper metal : `Cu_(2)S(I)+ 2Cu_(2)O(s) rarr 6Cu_(2)l + SO_(2)(g)` |
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