1) In the extraction of Cu, the metal is formed in the bessemer converter due to the reaction : A) $Cu_{2}S + 2Cu_{2}O \rightarrow 6Cu + SO_{2}$ B) $Cu_{2}S \rightarrow 2Cu+S$ C) $Fe + Cu_{2}O\rightarrow 2Cu + FeO$ D) $2Cu_{2}O\rightarrow4Cu + O_{2}$ Answer: Option DExplanation:Decomposition of carbonates and hydrated oxides