MCQOPTIONS
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MCQOPTIONS
| 1. |
What is the chemical formula of ammonia? |
| A. | NH<sub>2</sub> |
| B. | NH<sub>3</sub> |
| C. | NH<sub>4</sub><sup>+</sup> |
| D. | NH<sub>5</sub> |
| Answer» B. NH<sub>3</sub> | |