What type of strain does cyclobutane relieve by puckering?

Question

Quizplus · Accepted Answer

Puckering of cyclobutane relieves torsional strain by allowing the hydrogen atoms in the molecule to adopt a staggered conformation instead of an eclipsed conformation, which would cause repulsion between adjacent hydrogen atoms. This torsional strain is due to the eclipsed conformation of the C-C bonds in the planar form of cyclobutane. The puckered form of cyclobutane also helps to reduce the angle strain and van der Waals strain, but these strains are not primarily relieved by the puckering.

What Type of Strain Does Cyclobutane Relieve by Puckering