In the metallurgy of copper, metallic copper is finally formed in the furnace by the reactions

\[CuS+{{O}_{2}}\to Cu+S{{O}_{2}}\]

\[C{{u}_{2}}S+{{O}_{2}}\to 2Cu+S{{O}_{2}}\]

\[2CuS+3{{O}_{2}}\to 2CuO+2S{{O}_{2}}\] \[2CuO+CuS\to 3Cu+S{{O}_{2}}\]

\[2C{{u}_{2}}S+3{{O}_{2}}\to 2C{{u}_{2}}O+2S{{O}_{2}}\] \[C{{u}_{2}}S+2C{{u}_{2}}O\to 6Cu+S{{O}_{2}}\]

In the metallurgy of copper, metallic copper is finally formed in the

1.	In the metallurgy of copper, metallic copper is finally formed in the furnace by the reactions
A.	\[C{{u}_{2}}S+{{O}_{2}}\to 2Cu+S{{O}_{2}}\]
B.	\[2CuS+3{{O}_{2}}\to 2CuO+2S{{O}_{2}}\] \[2CuO+CuS\to 3Cu+S{{O}_{2}}\]
C.	\[2C{{u}_{2}}S+3{{O}_{2}}\to 2C{{u}_{2}}O+2S{{O}_{2}}\] \[C{{u}_{2}}S+2C{{u}_{2}}O\to 6Cu+S{{O}_{2}}\]
D.	\[CuS+{{O}_{2}}\to Cu+S{{O}_{2}}\]
Answer» D. \[CuS+{{O}_{2}}\to Cu+S{{O}_{2}}\]

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In the metallurgy of copper, metallic copper is finally formed in the furnace by the reactions

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