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JEE Main 201816 AprilOnline

Exam: JEE Main
Year: 2018
Date: 16 April
Mode: Online
Subject: Chemistry
Chapter: General Principles and Processes of Isolation of Metals

JEE Main 2018 · 16 April · Online · Chemistry · General Principles and Processes of Isolation of Metals

In the extraction of copper from its sulphide ore, metal is finally...

In the extraction of copper from its sulphide ore, metal is finally obtained by the oxidation of cuprous sulphide with:

Options

A ${SO}_{2}$
B ${Fe}_{2}{O}_{3}$
C ${Cu}_{2}O$
D $CO$

Correct answer

C. ${Cu}_{2}O$

Step-by-step solution

In the extraction of copper from its sulphide ore, metal is finally obtained by the oxidation of cuprous sulphide with ${Cu}_{2}O$ . It is an example of auto reduction.
${Cu}_{2}S + 2{Cu}_{2}O \to 6Cu + {SO}_{2}$

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