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CSS Solved Papers
Physics Chemistry

Engineering :: Petroleum Refining Engineering


  Arrange the following hydrocarbons series in the increasing order of knock rating for the same carbon atoms (i) Paraffins (P) (ii) Naphthenes (N) (iii) Aromatics(A)
[A]. A N P[B]. P N A
[C]. N A P[D]. A P N

Answer: Option A


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