Question:
What is the chief constituent of Pyrex glass ?
What is the chief constituent of Pyrex glass ?
Updated On: Mar 28, 2026
- $B_2O_3$
- $SiO_2$
- $Al_2O_3$
- $Na_2O$
Hide Solution
Verified By Collegedunia
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.
Was this answer helpful?
0
0
Top MHT CET Chemistry Questions
- Which of the following is the correct hybridization of the central atom in \( \text{CO}_2 \)?
- MHT CET - 2025
- Chemistry
- Chemical bonding and molecular structure
- In the reaction: \[ \text{Zn} + \text{CuSO}_4 \rightarrow \text{ZnSO}_4 + \text{Cu} \] Which substance is oxidized?
- MHT CET - 2025
- Chemistry
- Balancing a redox reaction
- Which of the following is the correct order of increasing atomic size?
- MHT CET - 2025
- Chemistry
- Classification of elements and periodicity in properties
- The oxidation number of oxygen in peroxides is __.
- MHT CET - 2025
- Chemistry
- Oxidation Number
The decomposition of a compound A follows first-order kinetics. The concentration of A at time t = 0 is 1.0 mol L-1. After 60 minutes, it reduces to 0.25 mol L-1. What is the initial rate of the reaction at t = 0? (Take ln 2 = 0.693)
- MHT CET - 2025
- Chemistry
- Chemical Kinetics
View More Questions
Top MHT CET p -Block Elements Questions
- Which of the following is the correct representation of Haber process?
- MHT CET - 2023
- Chemistry
- p -Block Elements
What is the quantity of sugar charcoal obtained when 34.2 g sugar is charred using required quantity of conc. sulphuric acid under ideal conditions?
- MHT CET - 2022
- Chemistry
- p -Block Elements
- What is the molecular formula of nitrogen sesquioxide?
- MHT CET - 2020
- Chemistry
- p -Block Elements
- Which of the following halogens combine with dihydrogen at the lowest temperature?
- MHT CET - 2020
- Chemistry
- p -Block Elements
- Which among the following oxides of nitrogen is a brown coloured gas?
- MHT CET - 2020
- Chemistry
- p -Block Elements
View More Questions
Top MHT CET Questions
- A block slides down a smooth inclined plane, and its acceleration is found to be \( \frac{g}{8} \). If \( g \) is the acceleration due to gravity, what is the angle of inclination \( \theta \) of the plane?
- MHT CET - 2025
- Inclined planes
- Given the equation: \[ 81 \sin^2 x + 81 \cos^2 x = 30 \] Find the value of \( x \).
- MHT CET - 2025
- Trigonometric Identities
- Which of the following is the correct hybridization of the central atom in \( \text{CO}_2 \)?
- MHT CET - 2025
- Chemical bonding and molecular structure
- A particle is moving with a constant velocity of 5 m/s in a circular path of radius 2 m. What is the centripetal acceleration of the particle?
- MHT CET - 2025
- centripetal acceleration
- A car accelerates uniformly from rest to a velocity of \( 25 \, \text{m/s} \) in \( 10 \, \text{seconds} \). What is the acceleration of the car?
- MHT CET - 2025
- Motion in a straight line
View More Questions
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