The shortest C-C bond length is present in: | vedclass

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(D) The bond length decreases as the bond order increases.$A$. $CH_3-CH_2-CH_3$ (alkane) has $C-C$ single bonds with a bond length of approximately $1

Vedclass · Accepted Answer

$CH \equiv C-C \equiv CH$

Vedclass · Answer

(D) The bond length decreases as the bond order increases.$A$. $CH_3-CH_2-CH_3$ (alkane) has $C-C$ single bonds with a bond length of approximately $1.54 \ \mathring{A}$.$B$. $CH_3-CH_2-CH_2-CH_3$ (alkane) has $C-C$ single bonds with a bond length of approximately $1.54 \ \mathring{A}$.$C$. $CH_2=CH-CH=CH_2$ (butadiene) has $C-C$ single bonds and $C=C$ double bonds. The $C-C$ single bond length is shortened due to conjugation (approx $1.46 \ \mathring{A}$).$D$. $CH \equiv C-C \equiv CH$ (buta$-1,3-$diyne) contains a $C-C$ single bond between two $sp$ hybridized carbons. Due to the high $s$-character $(50\%)$ of $sp$ hybridized carbons,the $C-C$ bond length is the shortest (approx $1.37 \ \mathring{A}$).Therefore,the shortest $C-C$ bond length is in $CH \equiv C-C \equiv CH$.

The shortest $C-C$ bond length is present in:

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