Question 13.8 Write chemical equations for combustion reaction of the following hydrocarbons:
(i) Butane
(ii) Pentene
(iii) Hexyne
(iv) Toluene
Class XI Hydrocarbons Page 397
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combustion reaction :- 1 mole of any compound is heated with excess amount of air or oxygen is known as combustion reaction.
(i) when butane burns with air or oxygen , it gives 4 moles of Carbon dioxide and 5 moles of water .
e.g., C4H10 + (13/2)O2-----> 4CO2 + 5H2O
(ii) when pentene burns with air or oxygen , it gives 5 moles of Carbon dioxide and 5 moles of water.
e.g., C5H10 + (15/2)O2-----> 5CO2 + 5H2O
(iii) when hexyne burns with air or oxygen , it gives 6 moles of Carbon dioxide and 5 moles of water.
e.g., C6H10 + (17/2)O2 ------> 6CO2 + 5H2O
(iv) when toluene ( C7H8) burns with air or oxygen it gives 7 moles of Carbon dioxide and 4 moles of water.
e.g., C7H8 + 9O2 -----> 7CO2 + 4H2O
(i) when butane burns with air or oxygen , it gives 4 moles of Carbon dioxide and 5 moles of water .
e.g., C4H10 + (13/2)O2-----> 4CO2 + 5H2O
(ii) when pentene burns with air or oxygen , it gives 5 moles of Carbon dioxide and 5 moles of water.
e.g., C5H10 + (15/2)O2-----> 5CO2 + 5H2O
(iii) when hexyne burns with air or oxygen , it gives 6 moles of Carbon dioxide and 5 moles of water.
e.g., C6H10 + (17/2)O2 ------> 6CO2 + 5H2O
(iv) when toluene ( C7H8) burns with air or oxygen it gives 7 moles of Carbon dioxide and 4 moles of water.
e.g., C7H8 + 9O2 -----> 7CO2 + 4H2O
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