Matte is a mixture of .......... .

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(D) In the metallurgy of copper,the concentrated ore is roasted in a reverberatory furnace. After roasting,the ore is smelted with silica $(SiO_2)$ an

Vedclass · Accepted Answer

$Cu_2S + FeS$

Vedclass · Answer

(D) In the metallurgy of copper,the concentrated ore is roasted in a reverberatory furnace. After roasting,the ore is smelted with silica $(SiO_2)$ and coke. During this process,iron oxide $(FeO)$ reacts with silica to form iron silicate slag $(FeSiO_3)$. The remaining copper sulfide $(Cu_2S)$ and some unreacted iron sulfide $(FeS)$ form a molten mixture known as matte. Therefore,matte is a mixture of $Cu_2S + FeS$.

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