Saved Bookmarks
| 1. |
Which of the chief constituent of pyrex glass ?A. `B_(2)O_(3)`B. `SiO_(2)`C. `Al_(2)O_(3)`D. `Na_(2)O` |
|
Answer» Correct Answer - B The chief constituetof pyrex glass is `SiO_(2)`. Pyrex glass is obtained by fusing `60`to `80% SiO_(2)`, `10 -25%` `B_(2)O_(3)` and remaining amount of `Al_(2)O_(3)`. |
|