The compound which is added to leaded gasoline to save engine from lead oxide and lead sulphate deposits?

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The compound which is added to leaded gasoline to save engine from lead oxide and lead sulphate deposits? Answer: Ethylene bromide

The compound added to leaded gasoline to prevent lead oxide and lead sulphate deposits in the engine is ethylene dibromide (or its related compound ethylene dichloride). This lead scavenger reacts with the lead deposits to form more volatile lead bromides (or chlorides), which are then carried out of the engine as a gas with the exhaust.

Question context

This question is part of 🔬 General Science within the broader 🌐 Current Affairs & GK subject and appears in the SPSC – Sindh Public Service Commission preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.