The chemical added to leaded petrol to preven | vedclass

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Question

(B) Tetraethyl lead $(TEL)$ was historically added to petrol as an antiknock agent. During combustion,$TEL$ decomposes to form lead,which can deposit

Vedclass · Accepted Answer

Ethylene dibromide

Vedclass · Answer

(B) Tetraethyl lead $(TEL)$ was historically added to petrol as an antiknock agent. During combustion,$TEL$ decomposes to form lead,which can deposit in the combustion chamber. To prevent this,ethylene dibromide $(C_2H_4Br_2)$ is added to the fuel. It reacts with the lead to form volatile lead bromide $(PbBr_2)$,which is then expelled from the engine through the exhaust gases.

The chemical added to leaded petrol to prevent the deposition of lead in the combustion chamber is

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