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Why is the extraction of copper from pyrites more difficult th
Chemistry Part-I
Chemistry Part-I

Class 12

NCERT

Publisher:
NCERT
Subject:
Chemistry
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Easy
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Why is the extraction of copper from pyrites more difficult than that from its oxide ore through reduction?

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Chemistry Part-I (NCERT)

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In the Ellinggam diagram (graph of vs T) for the formation of oxides, copper-copper oxide line is almost at the top. Hence, oxide ores of copper can be easily reduced to copper by heating with coke. The vs T lines for CO show negative slope at high temperature. Hence, it can easily reduce copper oxide to copper. However, for sulphide ores are higher than that for (which is an endothermic compound). Hence, the extraction of copper from pyrite ore is difficult.
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Question Text
Why is the extraction of copper from pyrites more difficult than that from its oxide ore through reduction?
TopicGeneral Principles and Processes of Isolation of Elements
SubjectChemistry
ClassClass 12
Answer TypeText solution:1
Upvotes43