An unknown alkene was treated with ozone followed by zinc dust in dilute acetic acid. The reaction products were determined to be acetone and propanal. What is the structure of the unknown alkene?
Correct answer: C. Option C
- A. Option A
- B. Option B
- C. Option C
- D. Option D
Explanation
Ozonolysis of alkene: Ozonolysis is a method of oxidatively cleaving alkenes or alkynes using ozone (O3), a reactive allotrope of oxygen. The process allows for carbon-carbon double or triple bonds to be replaced by double bonds with oxygen. The third compound gives propanaldehyde and acetone on ozonolysis. So the reactant will be the compound depicted in Option C.
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About Aldehydes and Ketones
Aldehydes and ketones contain the polar carbonyl group, but aldehydes are generally more readily oxidised and more reactive than ketones. Coverage includes preparation by oxidation or reduction routes, nucleophilic addition of reagents such as hydrogen cyanide and bisulfite, and tests that distinguish aldehydes from ketones.
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