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Tetraethyl lead is used as

  • A.Fire extinguisher
  • B.Gasoline additive
  • C.Mosquito repellent
  • D.Pain killer

Answer: B

Tetraethyl lead was used as a gasoline additive.

It is an anti-knock agent: it decomposes in the cylinder to lead and ethyl radicals which interrupt the chain reaction causing pre-ignition, raising the fuel's effective octane number. It has been phased out worldwide because lead is neurotoxic and poisons catalytic converters.

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