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JEE Main 202228 JuneEvening Shift

Exam: JEE Main
Year: 2022
Date: 28 June
Shift: Evening Shift
Subject: Chemistry
Chapter: General Principles and Processes of Isolation of Metals

JEE Main 2022 · 28 June · Evening Shift · Chemistry · General Principles and Processes of Isolation of Metals

In the metallurgical extraction of copper, following reaction is...

In the metallurgical extraction of copper, following reaction is used :

$FeO + {SiO}_{2} \to {FeSiO}_{3}$

$FeO$ and ${FeSiO}_{3}$ respectively are.

Options

Agangue and flux.
Bflux and slag
Cslag and flux.
DGauge and slag

Correct answer

D. Gauge and slag

Step-by-step solution

During extraction of copper, iron oxide present as impurity is removed by adding ${SiO}_{2}$ and converting it into ${FeSiO}_{3}$

$FeO + {SiO}_{2} \to {FeSiO}_{3}FluxSlag$

Hence, $FeO$ is gangue and ${FeSiO}_{3}$ is slag.

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