Tetraethyl lead (TEL) is added to petrol to

Mr. Dubey • 52.26K Points
Coach Chemistry

Q. Tetraethyl lead (TEL) is added to petrol to

(A) increase boiling point
(B) increase flash point
(C) prevent freezing
(D) increase anti-knocking rating

Correct Answer - Option(D)

Explanation by: Mr. Dubey

Tetraethyllead (TEL), tetramethyllead (TML), and, sometimes mixtures of methylated and ethylated organolead species, are added to gasoline to prevent the premature and spontaneous explosion of the air/gasoline mixture in the engine.

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