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Question
Chemistry
In the manufacture of iron from haematite, limestone is added to act as :
Q. In the manufacture of iron from haematite, limestone is added to act as :
2521
203
BITSAT
BITSAT 2010
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A
Flux
0%
B
Slag
50%
C
A reducing agent
50%
D
An oxidizing agent
0%
Solution:
The flux used in the extraction of iron from haematite in the blast furnace is a basic flux, lime stone
(
C
a
C
O
3
)
⋅
C
a
3
(
P
O
4
)
2
present in lime stone reacts with
S
i
O
2
to produce slag.