Select the correct order of increasing effect of TEL on octane number

Petroleum Refining Engineering Mcqs
BILAL KHATTAK0

A.Olefins aromatics naphthenes paraffins
B.Aromatics naphthenes olefins paraffins
C.Paraffins naphthenes aromatics olefins
D.Paraffins olefins naphthenes armatics

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  3. Arrange the following hydrocarbons series in the increasing order of cetane number for the same number of carbon atoms 1. Paraffins 2. Naphthenes 3. Aromatics
  4. Which of the following hydrocarbon series are almost absent in crude petroleum?
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