Question:
The Pyrex glass contains
The Pyrex glass contains
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Pyrex is borosilicate glass, and its important constituent is boron trioxide \((B_2O_3)\).
Updated On: May 7, 2026
- Aluminium oxide
- Lead oxide
- Zinc oxide
- Boron Trioxide
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The Correct Option is D
Solution and Explanation
Pyrex glass is a type of borosilicate glass.
It is known for its low thermal expansion and good thermal shock resistance.
The important oxide present in Pyrex glass is:
\[
B_2O_3.
\]
This oxide is called boron trioxide.
Boron trioxide helps in reducing the coefficient of thermal expansion of the glass.
Because of this, Pyrex glass can withstand sudden temperature changes better than ordinary soda-lime glass.
This is why Pyrex glass is used for laboratory glassware and heat-resistant glass products.
Therefore, Pyrex glass contains:
\[
\text{Boron Trioxide}.
\]
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