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

    2. A.

     2-methyl heptane
    B.

     Iso-octane
    C.

     2,2-dimethyl hexane
    D.

     N-heptane

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    Answer : Option 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.

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