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Byju's Answer
Standard X
Chemistry
Calcination
Iron is remov...
Question
Iron is removed from chalcopyrite as :
A
F
e
O
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B
F
e
S
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C
F
e
2
O
3
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D
F
e
S
i
O
3
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Solution
The correct option is
D
F
e
S
i
O
3
Removal of iron:
F
e
O
+
S
i
O
2
→
F
e
S
i
O
3
(
s
l
a
g
)
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0
Similar questions
Q.
Iron is removed from chalcopyrite as ______________.
Q.
Although there are several ores, 80% of the world copper production comes from the ore chalcopyrite (
C
u
F
e
S
2
). The extraction of copper from chalcopyrite involves partial roasting, removal of iron and self-reduction. Iron is removed from chalcopyrite as:
Q.
Calculate the weight of
V
2
O
5
produced from
5.75
g of
F
e
2
O
3
.
V
O
+
F
e
2
O
3
→
F
e
O
+
V
2
O
5
(Fe
=
56
, V
=
51
, O
=
16
)
Q.
In the preparation of iron from haematite
(
F
e
2
O
3
)
by the reaction with carbon as given below:
F
e
2
O
3
+
C
→
F
e
+
C
O
2
How much
80
%
pure iron could be produced from
120
k
g
of
90
%
pure
F
e
2
O
3
?
Q.
1
m
o
l
of iron
(
F
e
)
reacts competely with
0.65
m
o
l
O
2
to give a mixture of only
F
e
O
and
F
e
2
O
3
. Mole ratio ferrous oxide to ferric oxide to ferric oxide is:
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