Rank the length of bonds between carbon atoms in each molecule, starting with the shortest: C₂H₆, C₂H₄, C₂H₂.

Name: Rank the length of bonds between carbon atoms in each molecule, starting with the shortest: C 2 H 6 , C 2 H 4 , C 2 H 2 .
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The bond length between carbon atoms decreases as the bond order increases. Triple bonds (as in C₂H₆) are shorter than double bonds (C₂H₄), which are shorter than single bonds (C₂H₂).

Rank the Length of Bonds Between Carbon Atoms in Each