Hydrocarbons - Result Question 11
####11. In commercial gasolines the type of hydrocarbons which are more desirable, is
(a) branched hydrocarbons
(b) straight-chain hydrocarbons
(c) aromatic hydrocarbons such as toluene
(d) linear unsaturated hydrocarbons
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Solution:
- (a) Gasoline (petrol) is a mixture of alkanes, alkenes and aromatic hydrocarbons. The quality of a gasoline is determined by the amount of branched chain hydrocarbons $(2,2,4-$ trimethylpentane, commonly known as isooctane) present in it.
