Question

Which one of the following is the stablest structure of cyclohexatriene?

• A. Chair form
• B. Boat form
• C. Half chair form
• D. Planar form

Answer 1

Answer: (D)

All the six carbon atoms of cyclohexatriene (benzene) are $s{p}^2$ hybridised, hence its stablest structure is planar form.