Types of Strain Steric -Destabilization due to the repulsion between the electron clouds of atoms or groups. Groups try to occupy some common space. Torsional Destabilization due to the repulsion between pairs of bonds caused by the electrostatic repulsion of the electrons in the bonds.Groups are eclipsed. Angle Destabilisation due to distortion of a bond angle from it's optimum value caused by the electrostatic repulsion of the electrons in the bonds.e.g.cyclopropane Types of Strain • Steric - Destabilization due to the repulsion between the electron clouds of atoms or groups. Groups try to occupy some common space. • Torsional - Destabilization due to the repulsion between pairs of bonds caused by the electrostatic repulsion of the electrons in the bonds. Groups are eclipsed. • Angle - Destabilisation due to distortion of a bond angle from it's optimum value caused by the electrostatic repulsion of the electrons in the bonds. e.g. cyclopropane