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  4. The compound(s) that is(are) removed as slag during the extraction of copper is: (1) CaO (2) FeO (3) Al 2 O 3 (4) ZnO (5) NiO Choose the correct answer from the options given below :

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Q. The compound(s) that is(are) removed as slag during the extraction of copper is :
(1) $CaO$
(2) $FeO$
(3) $Al _2 O _3$
(4) $ZnO$
(5) $NiO$
Choose the correct answer from the options given below :

JEE MainJEE Main 2022General Principles and Processes of Isolation of Elements

Solution:

$FeO + SiO _2 \rightarrow FeSiO _3$