Question Detail
Question
Which of the following methods can be used to increase the octane rating of gasoline?
Correct Answer
Option D is the correct answer.
Detailed Explanation
All three methods increase octane rating: branched-chain alkanes and aromatic hydrocarbons have higher octane numbers than straight-chain alkanes; tetraethyllead was used as an antiknock additive.
Hint
What methods improve octane rating?