Question

Which forms(s) of cyclohexane is/are free from angle strain?

• A. Chair form
• B. Boat form
• C. Twist boat form
• D. All of the above

Answer 1

The correct option is D All of the above

All the three forms (chair form, boat form and twist boat form) of cyclohexane is/are free from angle strain. They are strainless conformations and maintain the normal $s{p}^3$ tetrahedral bond angle of ${109}^o$. Hence, there is no angle strain.