Question

why pi bond is more diffuse than sigma bond​

Answer 1

Answer:

The pi bond is more diffused than sigma bond because in sigma bonding electrons are present in only one axis i.e. bond axis while in pi bond electrons are present in all axis so electrons occupies more space so are more diffused than sigma bond.

Explanation:

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Answer 2

Answer:

Pi-bond is more diffused than sigma bond because, ​in pi-bond, electrons are not strongly attracted by the nuclei due to weak parallel overlapping. Therefore pi electrons and orbital spread over a wide area.

Explanation:

Sigma bond:-

• The covalent bond which is formed by the axial overlapping of atomic orbitals is known as a sigma bond. Example: methane has four C-H sigma bonds.
• Sigma bond is formed by the overlapping of bonding orbitals from end to end (head-to head) along the internuclear axis. This overlapping is also called head or axial overlapping.
• Due to head overlapping, electrons of sigma bond are strongly attracted between two nuclei.

Pi- bond:-

• Pi bond is formed by sidewise overlapping of atomic orbitals direction perpendicular to the internuclear axis.
• The atomic orbitals should be present in same plane and parallel to each other.
• The side-overlapping atomic orbitals consist of two types saucer shaped charged clouds above and below internuclear axis.
• Therefore, electrons of pi-bonds are weakly attracted by the nuclei. So, pi bonds are more diffused.

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