Which class of organic compound is commonly used in fuels?

1 Answer
Aug 22, 2016

Alkanes, but isomeric olefins are present.

Explanation:

The petrol with which we fill our cars, are that fraction of crude which boils (i.e. comes off the fractionating tower) between #40# #""^@# and #60# #""^@# #C#; these are the isomeric butanes, pentanes, and hexanes. Diesel fuels are commonly longer chain, #C_10# to #C_12#, and typically have the #1^@# of unsaturation.