In extraction of copper, its sulphide ore is heated in a reverberatory furnace after mixing with sil

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General Principles and processes of Isolation of Elements

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In the extraction of copper, its sulphide ore is heated in a reverberatory furnace after mixing with silica to :

A

separate $CuO$ as $CuSiO _3$

B

remove calcium as $CaSiO _3$

C

decrease the temperature needed for roasting of $Cu _2 S$

D

remove $FeO$ as $FeSiO _3$

(JEE MAIN-2023)

Solution

The copper ore contains iron, it is mixed with silica before heating in reverberatory furnace. $FeO$ slags off as $FeSiO _3$.

$FeO + SiO _2 \longrightarrow FeSiO _3$

Standard 12

Chemistry

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