Home Chemistry Hydrocarbon Alkane A sample of gasoline contains 81% iso- octan…
Chemistry Hydrocarbon Alkane Single Correct MCQ
Published on: August 13, 2026

A sample of gasoline contains 81% iso- octane and 19% n -heptane. Its octane number will be

A
19
B
81
C
100
D
62

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The correct answer is:
B

Octane number is related to the percentage of iso -octane since iso -octane is 81% hence octane number is 81%.

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