The structure of ethyne is_________________?
Correct answer: C. linear
- A. angular
- B. trigonal
- C. linear
- D. trigonal planar
Explanation
Ethyne, C2H2, contains a carbon-carbon triple bond. Each carbon is sp-hybridized, and sp orbitals are arranged 180° apart, so the molecule has a linear structure. Students may choose trigonal planar by confusing ethyne with an sp2-hybridized alkene.
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About Alkynes
Alkynes are unsaturated hydrocarbons containing a carbon-carbon triple bond, with sp-hybridised carbon atoms and a linear arrangement around the bond. The content includes nomenclature, preparation, acidity of terminal alkynes, and addition reactions with hydrogen, halogens, hydrogen halides and water, as well as oxidation.
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