MHT CET 2022 Chemistry question
What is carbon - carbon bond length in benzene?
Answer: (D)
Solution
Because of resonance, all six C-C bonds in benzene are identical and have a length intermediate between a C-C single bond (154 pm) and a C=C double bond (134 pm), the experimental value being about 139 pm. Among the given options, 138 pm (D) is the closest and is the intended answer.
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