Write chemical equations for combustion reaction of the following…

Question 18 of 32beginner🔧 ApplyShort Answer4 marks

Write chemical equations for combustion reaction of the following hydrocarbons: (i) Butane (ii) Pentene (iii) Hexyne (iv) Toluene

(i)

Answer

$2C_4H_{10} + 13O_2 \rightarrow 8CO_2 + 10H_2O$

(ii)

Answer

$2C_5H_{10} + 15O_2 \rightarrow 10CO_2 + 10H_2O$

(iii)

Answer

$2C_6H_{10} + 17O_2 \rightarrow 12CO_2 + 10H_2O$

(iv)

Answer

$C_7H_8 + 9O_2 \rightarrow 7CO_2 + 4H_2O$

Explanation

Combustion reactions of hydrocarbons involve their oxidation in the presence of oxygen to yield carbon dioxide and water. The equations are balanced by ensuring an equal number of carbon, hydrogen, and oxygen atoms on both the reactant and product sides. For Toluene, the molecular formula $C_7H_8$ is used.

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