Compare the carbon-carbon sigma bond length i | vedclass

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(C) The carbon-carbon bond length depends on the hybridization of the carbon atoms involved. In $Ethane$ $(CH_3-CH_3)$, the carbon atoms are $sp^3$ hy

Vedclass · Accepted Answer

$Ethane > Ethylene > Acetylene$

Vedclass · Answer

(C) The carbon-carbon bond length depends on the hybridization of the carbon atoms involved. In $Ethane$ $(CH_3-CH_3)$, the carbon atoms are $sp^3$ hybridized, resulting in a bond length of approximately $154 \ pm$. In $Ethylene$ $(CH_2=CH_2)$, the carbon atoms are $sp^2$ hybridized, resulting in a bond length of approximately $134 \ pm$. In $Acetylene$ $(CH \equiv CH)$, the carbon atoms are $sp$ hybridized, resulting in a bond length of approximately $120 \ pm$. As the percentage of $s$-character increases ($sp^3 = 25\%$, $sp^2 = 33.3\%$, $sp = 50\%$), the bond length decreases. Therefore, the order of bond length is $Ethane > Ethylene > Acetylene$.

Compare the carbon-carbon $\sigma$ bond length in ethane, ethylene and acetylene.

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