MHT CET2017Chemistryp Block Elements (Group 13 & 14)
What is the chief constituent of pyrex glass?
Options
- AB 2 O 3
- BS i O 2
- CA l 2 O 3
- DN a 2 O
Correct answer
B. S i O 2
Step-by-step solution
Pyrex glass is obtained by fusing together 60 to 80% S i O 2 , 10 to 25% B 2 O 3 and remaining amount of A l 2 O 3