A fuel of an octane number rating of 75 matches in knocking intensity – McqOptions

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1.	A fuel of an octane number rating of 75 matches in knocking intensity as a mixture of ___________
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
Answer» B. 75% normal heptane and 25% iso-octane

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