When the fuel mainly contains ............... | vedclass

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(A) Knocking in an internal combustion engine is caused by the premature ignition of the fuel-air mixture. $n-$alkanes (straight-chain alkanes) have a

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$n-$alkanes

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(A) Knocking in an internal combustion engine is caused by the premature ignition of the fuel-air mixture. $n-$alkanes (straight-chain alkanes) have a low octane number and are highly prone to pre-ignition,which leads to knocking. Branched-chain alkanes,cycloalkanes,and aromatics have higher octane numbers and resist knocking better.

When the fuel mainly contains ...............,knocking occurs more in the engine.

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