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Question

Which one of these was added in petrol as anti-knocking agent?

A
Pb
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B
Tetraethyl lead
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C
Hg
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D
Ni
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Solution

The correct option is D Tetraethyl lead
An antiknock agent is a gasoline additive used to reduce engine knocking and increase the fuel's octane rating by raising the temperature and pressure at which auto-ignition occurs. Tetraethyl lead was used as anti-knocking agent in petrol.

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