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Question
Chemistry
Silica is a/an
Q. Silica is a/an
3485
194
Manipal
Manipal 2008
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A
acidic flux only
B
gangue only
C
basic flux only
D
both gangue and acidic flux
Solution:
When
S
i
O
2
(silica) is present as earthly impurity in an ore, it is called gangue and when it is added to remove basic impurities like
C
a
O
,
F
e
O
etc. It is called an acidic flux.