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Which compound of fuel is oxidised in the process of knocking?

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in Engineering Chemistry II by (789k points)
Which compound of fuel is oxidised in the process of knocking?

(a) Coke

(b) Gasoline

(c) Hydrocarbon

(d) Compounds containing sulphur

I have been asked this question in unit test.

Asked question is from Knocking in portion Fuels and Combustion of Engineering Chemistry II

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Right choice is (c) Hydrocarbon

To explain I would say: In an internal combustion engine, a mixture of air and petrol vapour is compressed and ignited by an electric spark and the essential chemical reaction is the oxidation of the hydrocarbon molecules.

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