Question:
What is the chief constituent of Pyrex glass ?
What is the chief constituent of Pyrex glass ?
Updated On: May 15, 2024
- $B_2O_3$
- $SiO_2$
- $Al_2O_3$
- $Na_2O$
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The Correct Option is B
Solution and Explanation
Pyrex glass is obtained by fusing toghether 60 to $80 \% SiO _{2}, 10$ to $25 \% B _{2} O _{3}$ and remaining amount of $Al _{2} O _{3}$.
$SiO _{2}$ is the chief constituent of Pyrex glass.
$SiO _{2}$ is the chief constituent of Pyrex glass.
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Concepts Used:
P-Block Elements
- P block elements are those in which the last electron enters any of the three p-orbitals of their respective shells. Since a p-subshell has three degenerate p-orbitals each of which can accommodate two electrons, therefore in all there are six groups of p-block elements.
- P block elements are shiny and usually a good conductor of electricity and heat as they have a tendency to lose an electron. You will find some amazing properties of elements in a P-block element like gallium. It’s a metal that can melt in the palm of your hand. Silicon is also one of the most important metalloids of the p-block group as it is an important component of glass.
P block elements consist of:
- Group 13 Elements: Boron family
- Group 14 Elements: Carbon family
- Group 15 Elements: Nitrogen family
- Group 16 Elements: Oxygen family
- Group 17 Elements: Fluorine family
- Group 18 Elements: Neon family