MCQOPTIONS
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				| 1. | 
                                    An oxide of nitrogen has molecular weight 30. What is the number of electrons in one molecule of the compound? [NDA] | 
                            
| A. | 14 | 
| B. | 15 | 
| C. | 22 | 
| D. | 23 | 
| Answer» D. 23 | |