Question:
The Silica brick contains
The Silica brick contains
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Silica bricks are acidic refractories and contain a very high amount of silica, generally about \(93\text{--}98\%\ SiO_2\).
Updated On: May 7, 2026
- \(85\text{--}90\%\ SiO_2\)
- \(90\text{--}92\%\ SiO_2\)
- \(93\text{--}98\%\ SiO_2\)
- \(80\text{--}85\%\ SiO_2\)
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The Correct Option is C
Solution and Explanation
Silica bricks are acidic refractory bricks.
They are mainly made from silica-rich raw materials.
The principal chemical constituent of silica brick is:
\[
SiO_2.
\]
For a brick to be called a silica brick, it must contain a very high percentage of silica.
Silica bricks are commonly used in coke ovens, glass tank furnaces, and other high temperature applications where acidic refractories are required.
The silica content in silica bricks is generally very high.
Among the given options, the correct range is:
\[
93\text{--}98\%\ SiO_2.
\]
Therefore, silica brick contains:
\[
93\text{--}98\%\ SiO_2.
\]
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