Which compound is used for increase of octane rating?
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Correct Answer: Option C
Detailed Explanation:
Tetraethyllead (TEL) was historically the most widely used anti-knock agent added to gasoline to increase octane rating and prevent engine knocking.
Though highly effective, TEL is toxic and has been phased out globally; modern fuels use unleaded alternatives like ethanol and aromatic hydrocarbons.
Question 3 of 10 Everyday Chemistry
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