Alkenes
Ozonolysis of 2-butene followed by reductive workup (Zn/H₂O) gives:
Select the correct option:
🔒 Solution Hidden from View
Submit your answer to unlock the detailed step-by-step solution.
More hydrocarbons Practice Questions
About This Question
- Subject
- chemistry
- Chapter
- hydrocarbons
- Topic
- alkenes
- Difficulty
- Medium
- Year
- 2025
Solution
Correct Answer:
Twomoleculesofethanal(acetaldehyde)
Ozonolysis cleaves the C=C double bond, and each carbon of the original double bond ends up as a carbonyl group. 2-Butene is CH₃–CH=CH–CH₃. The double bond is between C2 and C3. Cleavage gives: CH₃–CHO (ethanal) from C2 side and CH₃–CHO (ethanal) from C3 side. Since both fragments are identical, the product is two molecules of ethanal (CH₃CHO). Reductive workup (Zn/H₂O) ensures no further oxidation to carboxylic acids. The plausibility check: two carbons each bearing one methyl group and one H is consistent with ethanal.
This medium difficulty chemistry question is from the chapter hydrocarbons, covering the topic of alkenes. It appeared in the 2025 exam.
Looking for more practice? Explore all chemistry questions or browse hydrocarbons questions on RankGuru.