MCQOPTIONS
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MCQOPTIONS
| 1. |
The Borosilicate glass does not contain ________ |
| A. | SiO<sub>2</sub> |
| B. | B<sub>2</sub>O<sub>3</sub> |
| C. | Al<sub>2</sub>O<sub>3</sub> |
| D. | KH<sub>2</sub>PO<sub>4</sub> |
| Answer» E. | |