Complete the following reactions:
(i) C2H4 + O2→
(ii) 4Al + 3 O2→
(i) C2H4 + O2→ 2CO2 + 2H2O
Ethane in reaction with oxygen gives carbon dioxide and water.
(ii) 4Al + 3 O2→ 2Al2O3
Aluminium on reaction with oxygen gives alumina.