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Question

A pi-bond is formed by the overlap of:


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Solution

A pi-bond is formed by the overlap of p-orbitals.

  • For a pi-bond, p-orbitals overlap in a sidewise manner.
  • Covalent bonds are formed by the overlapping of atomic orbitals. There are two types of covalent bonds:
  1. Sigma bonds are a result of the head-to-head overlapping of atomic orbitals.
  2. Pi bonds are formed by the lateral or the sidewise overlap of two atomic orbitals.

In pi-bond, the overlap of atomic orbitals occurs in a direction perpendicular to the internuclear axis.

  • During the formation of π bonds, the axes of the atomic orbitals are parallel to each other whereas the overlapping is perpendicular to the internuclear axis as shown below:

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