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15-08-2021 Chemistry

Q. The compound that has the least value for octane number is :

A. 2-methyl heptane
B. Iso-octane
C. 2,2-dimethyl hexane
D. N-heptane


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Dapzoi Verified
Commented on 2021-08-15 13:57:10 (IST)
Answer - D

Explanation : Octane rating or octane number is a standard measure of the performance of a motor or aviation fuel. The higher the octane number, the more compression the fuel can withstand. Isooctane (upper) has an octane rating of 100 whereas n-heptane has an octane rating of 0.