Q17 of 74 Page 185

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.


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Why is H2O a liquid and H2S a gas?

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