Hybridization
The hybridization of each carbon atom in ethyne (HC≡CH) is:
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About This Question
- Subject
- chemistry
- Chapter
- some basic principles of organic chemistry
- Topic
- hybridization
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
sp
In ethyne (acetylene), each carbon forms a triple bond consisting of one sigma and two pi bonds. Each carbon forms only 2 sigma bonds (one C–C sigma and one C–H sigma), so it requires 2 hybrid orbitals. Carbon undergoes sp hybridization, leaving two unhybridized p orbitals on each carbon that form two π bonds. sp hybridized carbons are linear (bond angle 180°), consistent with the linear geometry of ethyne.
This easy difficulty chemistry question is from the chapter some basic principles of organic chemistry, covering the topic of hybridization. It appeared in the 2025 exam.
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