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Chemistry
In the extraction of copper, its sulphide ore is heated in a reverberatory furnace after mixing with silica to:
Q. In the extraction of copper, its sulphide ore is heated in a reverberatory furnace after mixing with silica to:
129
84
JEE Main
JEE Main 2023
General Principles and Processes of Isolation of Elements
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A
remove
F
e
O
as
F
e
S
i
O
3
100%
B
separate
C
u
O
as
C
u
S
i
O
3
0%
C
decrease the temperature needed for roasting of
C
u
2
S
0%
D
remove calcium as
C
a
S
i
O
3
0%
Solution:
The copper ore contains iron, it is mixed with silica before heating in reverberatory furnace.
F
e
O
slags off as
F
e
S
i
O
3
.
F
e
O
+
S
i
O
2
⟶
F
e
S
i
O
3