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GOOD MORNING LAW SAMA7TO 3ALA AY ASAS 7ALAYNA DA
13. The octane rating of gasoline refers to its
A. percentage C8H18 by volume.
B. radiation dose.
C. alcohol level.
D. ability to resist engine knocking.
E. percentage of unsaturated hydrocarbons.
14. Which one of these hydrocarbon chains would have the highest octane rating?
A.
B.
C.
D.
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