Which of the following has the lowest cetane number ?
Correct answer: A. Aromatics
- A. Aromatics
- B. i-paraffins
- C. Naphthene
- D. Olefins
Explanation
Aromatics generally have the poorest ignition quality among the listed hydrocarbon classes and therefore the lowest cetane numbers. Straight-chain paraffins have high cetane numbers, while branched paraffins and cyclic compounds fall between these extremes.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
Practise Chemical Process Principles
2,710 free Chemical Process Principles MCQs from Chemical Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Chemical Engineering questions like this
Chemical Engineering is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.
More Chemical Process Principles questions
Liquefied Petroleum Gas (LPG) is mainly a mixture of _____________________?
High aniline point of a petrofuel (say diesel) indicates that ________________?
Which of the following is not an important property of fuel oil/furnace oil ?
Carbon percentage (by weight) in crude petroleum may be about_________________?
CnH2n is the general formula for_______________?
An imbalanced chemical reaction equation is against the law of________________?