Which statement is false in case of SI engines

Heat Engines Mcqs
BILAL KHATTAK0

A.Increasing the length of the carbon chain increases the knocking tendency
B.Centralising the carbon atoms decreases the knocking tendency
C.Adding methyl groups to the side of the carbon chain increases the knocking tendency
D.Unsaturated aliphatic hydrocarbons show less knocking tendency
E.Accetylene has least tendency to knocking

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