A given fuel has an octane number of 100. This means that

Assessment: WAEC SSCE - Chemistry - 2003 (Objective) Subject: Chemistry

Question 1 Report

A given fuel has an octane number of 100. This means that
Answer Details
The correct answer is that the knocking tendency of the fuel is low. The octane number of a fuel is a measure of its ability to resist "knocking" or "pinging" during combustion, caused by the air/fuel mixture detonating prematurely in the engine. A fuel with a higher octane number is more resistant to knocking and is generally considered to be of higher quality. An octane number of 100 indicates that the fuel has excellent resistance to knocking, and is therefore considered a high-quality fuel.
Read lesson note on Chemical Equilibria (JAMB)
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