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JEE Main 201419 AprilOnline

Exam: JEE Main
Year: 2014
Date: 19 April
Mode: Online
Subject: Chemistry
Chapter: General Principles and Processes of Isolation of Metals

JEE Main 2014 · 19 April · Online · Chemistry · General Principles and Processes of Isolation of Metals

Which one of the following ores is known as Malachite:

Which one of the following ores is known as Malachite:

Options

A ${Cu}_{2}S$
B ${Cu}_{2}O$
C $Cu{( OH )}_{2} . {CuCO}_{3}$
D ${CuFeS}_{2}$

Correct answer

C. $Cu{( OH )}_{2} . {CuCO}_{3}$

Step-by-step solution

Copper glance : ${Cu}_{2}S$ ; Cuprite : ${Cu}_{2}O$
Malachite : $Cu{( OH )}_{2} . {CuCO}_{3}$ ; Chalcopyrite : ${CuFeS}_{2}$
Malachite is a copper carbonate hydroxide mineral with the formula $Cu ( OH{)}_{2} . {CuCO}_{3}$ .

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