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Fundamental Principles of Organic Chemistry Octane Number and Knocking

1

Choose the best answer

Which type of hydrocarbon generally shows the greatest knocking tendency in petrol engines?

Verified Answer & Explanation⌄

Correct Answer: A) Straight-chain alkanes

Concept Explanation

Straight-chain alkanes have lower octane ratings and generally knock more readily than branched or aromatic hydrocarbons.

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