Multiple choice general knowledge science & technology

Tetraethyl lead is used as

  1. pain killer

  2. fire extinguisher

  3. mosquito repellent

  4. petrol additive
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Tetraethyl lead was historically added to petrol (gasoline) as an anti-knocking agent to prevent engine damage. It is not used as a pain killer, fire extinguisher or mosquito repellent. Its use has been phased out due to lead toxicity.

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