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How does a carbon to carbon triple bond compare with a carbon to carbon single bond?
AThe triple bond is longer and stronger
BThe triple bond is shorter and weaker
CThe triple bond is longer and weaker
DThe triple bond is shorter and stronger
Answer & Solution
Correct answer: D. The triple bond is shorter and stronger
1. Bond strength climbs as the number of shared electron pairs climbs.
2. A triple bond shares three pairs against the single bond's one pair, so it is the stronger link.
3. Stronger bonds pull the two nuclei closer, so the bond length falls as strength rises.
4. A triple bond is therefore both shorter and stronger than a single bond between the same atoms.
5. Pairing shorter with weaker breaks the link between bond strength and bond length.
_Source: OpenStax Chemistry (CC BY 4.0), Chs 7 and 17, section 7.5 Strengths of Ionic and Covalent Bonds_
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