Question

Why cyclopentane is more stable than cyclobutane why?

Answer 1

$answer$

⭐Cyclopentane is slightly more stable because it can relieve some of the bond strain by buckling the ring and pushing one carbon out of the plane.

⭐Cyclohexane has effectively zero strain, since all the carbons now have exactly the correct bond angle for optimum overlap of their orbitals with their neighbours.