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Q.
The carbon-carbon bond distance in benzene is
NTA AbhyasNTA Abhyas 2020Organic Chemistry – Some Basic Principles and Techniques
Solution:
The bond length of carbon-carbon single bond is $\text{1} \text{.54 } \overset{\text{o}}{\text{A}}$ and the carbon double bond carbon bond length is $\text{1} \text{.32 } \overset{\text{o}}{\text{A}}.$ In benzene due to resonance all bond lengths are equal which is $\text{1} \text{.4 } \overset{\text{o}}{\text{A}}$ .
Hence, C - C bond length in benzene is longer length C = C.