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Question

Chemistry Question on Concentration of ores

Heating a mixture of Cu2O {Cu_2O} and Cu2S {Cu_2S} will give

A

\ceCuO+CuS\ce{CuO + CuS}

B

\ceCu+SO3\ce{Cu + SO_3}

C

\ceCu+SO2\ce{Cu + SO_2}

D

\ceCu(OH)2+CuSO4\ce{Cu(OH)_2 + CuSO_4}

Answer

\ceCu+SO2\ce{Cu + SO_2}

Explanation

Solution

2Cu2O+Cu2S6Cu+SO22 Cu _{2} O + Cu _{2} S \longrightarrow 6 Cu + SO _{2}
Cuprous sulphide brings about reduction of cuprous oxide. This reaction takes place in bessemer converter during metallurgy of copper.