Q18
The octane number of zero is assigned to
A.
2-methyl octane
B.
n-heptane
AnswerC.
iso-octane
D.
3-methyl octane
Answer: Option B
Solution
Answer: Option B
Solution:
n-heptane is defined as the zero point of the octane rating scale. 2,2,4-Trimethylpentane has an octane rating of 100, whereas n-heptane has an octane rating of 0. The octane number is based on an arbitrary scale which is a measure of its ability to resist knocking, as it burns on combustion.