Complete the following reactions

32 Name two metals used in making fuse wires. 33 (i) How can ammonia be converted to NO₂ and nitric acid?
(ii) What is liquor ammonia? 35 Define the following terms
i) Mineral
ii) Ore
iii) gangue. 36 a) State why hydrogen is said to be a clean fuel?
b) What property of hydrogen is involved in being a good fuel?
c) What is hydrogenation of oils? Write one application.