Which variety of glass is heat resistant?

A. Bottle glass
B. Flint glass
C. Hard glass
D. Pyrex glass
E. None of above

Check Answer

The correct answer is D) Pyrex glass.

Pyrex glass, also known as borosilicate glass, is a heat-resistant variety of glass. It is known for its ability to withstand high temperatures and thermal shock, meaning it can go from hot to cold temperatures without cracking.

Pyrex glass was developed in the early 20th century by Corning Glass Works, now known as Corning Inc. Pyrex is made of a specific type of borosilicate glass, which is a combination of silica, boron trioxide, and soda or potash. This composition makes the glass more resistant to thermal stress and less prone to breaking.

Pyrex glass is commonly used for cookware and laboratory glassware, as well as for high-temperature industrial applications. Because of its heat resistance and strength, Pyrex is ideal for baking dishes, oven-safe cookware, and even for laboratory equipment like test tubes, flasks, and beakers.

Flint glass and Hard glass also known as soda-lime glass are also types of glass that are commonly used, but they are not as heat-resistant as Pyrex glass. Flint glass is a type of lead glass that is known for its high refractive index, while Hard glass is a common type of glass that is used for a wide range of everyday products, such as bottles and jars.
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