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ENTRANCE TEST – 2011 :: Discussion
| 19. | In silicon dioxide each silicon atom is tetrahedrally bonded to four oxygen atoms and each oxygen atom is bonded to two silicon atoms. The ratio of silicon to oxygen atoms is: | |
| A. | 2:2 | |
| B. | 1:2 | |
| C. | 2:1 | |
| D. | 1:4 | |
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