• # question_answer 71) In the extraction of copper from its sulphide ore, the metal is formed by the reduction of $\text{C}{{\text{u}}_{\text{2}}}\text{O}$with A)  $FeS$ B)  $CO$ C)  $C{{u}_{2}}S$ D)  $S{{O}_{2}}$

$2C{{u}_{2}}O+C{{u}_{2}}S\xrightarrow{{}}6Cu+S{{O}_{2}}$