MCQOPTIONS
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MCQOPTIONS
| 1. |
Which of the following molecule doesn t involve covalent bond? |
| A. | H<sub>2</sub>O |
| B. | CCl<sub>4</sub> |
| C. | NaCl |
| D. | O<sub>2</sub> |
| Answer» D. O<sub>2</sub> | |