The compound which is added to leaded gasoline to save engine from lead oxide and lead sulphate deposits is__________________?
Correct answer: B. Ethylene bromide
- A. Ethylene iodide
- B. Ethylene bromide
- C. Ethylene chloride
- D. Ethylene fluoride
Explanation
Ethylene bromide, C2H4Br2, was added to leaded petrol so that it reacted with lead compounds and helped convert deposits into volatile lead bromide, which could leave through the exhaust. The likely mistake is choosing ethylene iodide because iodine is also a halogen, but ethylene bromide was the compound used for this purpose.
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About Reactions of Group IV Elements
Group IV, or Group 14, chemistry covers the trends from carbon and silicon to tin and lead, including their reactions with oxygen, halogens, water, acids and alkalis. It also examines the structures and properties of their oxides and chlorides, oxidation states, and the inert pair effect, rather than treating all members as equally metallic.
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