318 SMITH'S INTERMEDIATE CHEMISTRY 



5. How could you distinguish nitric oxide, (a) from hydrogen, 

 (b) from oxygen? 



6. How could you distinguish nitrous oxide from oxygen? 



7. Make a list of the names and formulae of the oxides of nitro- 

 gen, arranging them in the order of increasing proportions of 

 oxygen. 



8. Write full ionic equations for the preparation of ammonium 

 nitrate (p. 309)? 



