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  1. A fuel of an octane number rating of 75 matches in knocking intensity as a mixture of

    2. A.

     75% iso-octane and 25% normal heptane
    B.

     75% normal heptane and 25% iso-octane
    C.

     75% petrol and 25% diesel
    D.

     75% diesel and 25% petrol

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    Answer : Option A

    Explanation :

    A fuel of an octane number rating of 75 matches in knocking intensity as a mixture of 75% iso-octane and 25% normal heptane

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