GK
GENERAL SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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mosquito repellent
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pain killer
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fire extinguisher
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petrol additive
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Detailed explanation-1: -Tetraethyl lead acts as an anti knocking agent in gasoline and jet fuel and is added to petrol in order to reduce the ignition of vapors of petrol. Thus, tetraethyl lead is a petroleum additive.
Detailed explanation-2: -TEL was once used extensively as an additive in gasoline (petrol) for its ability to increase the fuel’s octane rating (that is, to prevent its premature detonation ("knocking") in the engine) thus allowing the use of higher compression ratios for greater efficiency and power.
Detailed explanation-3: -Generally, tetraethyl lead is added to petrol to make it burn smoothly in motor vehicles. However, burning of petrol in automobiles releases toxic lead compounds through the exhaust pipes of automobiles. Continuous inhalation of these compounds causes anaemia, brain damage, convulsions and even death.