What is the decreasing order of C - C bond le | vedclass

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(A) The bond length decreases as the bond order increases.$1.$ In $C_2H_6$ (Ethane), the $C-C$ bond is a single bond (bond order = $1$), length $\appr

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$IV > III > I > II$

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(A) The bond length decreases as the bond order increases.$1.$ In $C_2H_6$ (Ethane), the $C-C$ bond is a single bond (bond order = $1$), length $\approx 154 \ pm$.$2.$ In $C_6H_6$ (Benzene), the $C-C$ bond has partial double bond character due to resonance (bond order = $1.5$), length $\approx 139 \ pm$.$3.$ In $C_2H_4$ (Ethene), the $C-C$ bond is a double bond (bond order = $2$), length $\approx 134 \ pm$.$4.$ In $C_2H_2$ (Ethyne), the $C-C$ bond is a triple bond (bond order = $3$), length $\approx 120 \ pm$.Therefore, the decreasing order of $C-C$ bond length is $IV > III > I > II$.

What is the decreasing order of $C - C$ bond length in the following compounds?
$[I]$ $C_2H_4$
$[II]$ $C_2H_2$
$[III]$ $C_6H_6$
$[IV]$ $C_2H_6$

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What is the decreasing order of $C - C$ bond length in the following compounds?$[I]$ $C_2H_4$$[II]$ $C_2H_2$$[III]$ $C_6H_6$$[IV]$ $C_2H_6$