Write chemical equations for combustion reaction of the following hydrocarbons:

(i) Butane (ii) Pentene

(iii) Hexyne (iv) Toluene

A combustion reaction takes place in presence of oxygen.

(i) Combustion reaction of Butane is as follows : -

(ii) Combustion reaction of Pentene is as follows : -

(iii) Combustion reaction of Hexyne is as follows : -

(iv)

(v) Combustion reaction of Toluene is as follows : -

Toluene