The reason behind that the atoms in a single bond can rotate about inter nuclear axis without breaking the bond is to be described. The reason behind that the atoms in a double and triple bond cannot rotate about inter nuclear axis unless the bond is broken is to be described. Concept introduction: Sigma bond is defined as axial overlapping of atomic orbitals. This orbital overlaps along the inter-nuclear axis. π bond is defined as the sideway overlapping of atomic orbitals. This orbital overlaps along the perpendicular of inter-nuclear axis. To determine: The explanation that the atoms in a single bond can rotate about inter nuclear axis without breaking the bond. The explanation that the atoms in a double and triple bond cannot rotate about the internuclear axis unless the bond is broken.

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Chapter 4, Problem 16Q

Interpretation Introduction

Interpretation: The reason behind that the atoms in a single bond can rotate about inter nuclear axis without breaking the bond is to be described. The reason behind that the atoms in a double and triple bond cannot rotate about inter nuclear axis unless the bond is broken is to be described.

Concept introduction: Sigma bond is defined as axial overlapping of atomic orbitals. This orbital overlaps along the inter-nuclear axis.

π bond is defined as the sideway overlapping of atomic orbitals. This orbital overlaps along the perpendicular of inter-nuclear axis.

To determine: The explanation that the atoms in a single bond can rotate about inter nuclear axis without breaking the bond. The explanation that the atoms in a double and triple bond cannot rotate about the internuclear axis unless the bond is broken.

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