The C-H bond distance is longest in | vedclass

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(C) The bond length of a $C-H$ bond depends on the hybridization of the carbon atom. As the $s$-character in the hybrid orbital increases,the bond len

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$C_2H_6$

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(C) The bond length of a $C-H$ bond depends on the hybridization of the carbon atom. As the $s$-character in the hybrid orbital increases,the bond length decreases. In $C_2H_6$ (ethane),the carbon is $sp^3$ hybridized ($25\% \ s$-character). In $C_2H_4$ (ethene),the carbon is $sp^2$ hybridized ($33.3\% \ s$-character). In $C_2H_2$ (ethyne),the carbon is $sp$ hybridized ($50\% \ s$-character). Since $sp^3$ hybridization has the lowest $s$-character,the $C-H$ bond in $C_2H_6$ is the longest.

The $C-H$ bond distance is longest in

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