Question

What are sigma and pi bonds ? Why is a sigma bond stranger than a pi bond?

Answer 1

Hi

Here is ur answer

Sigma

         $ Formed by the end on overlap along the inter nuclear axis.

         $ Overlapped region is very large.

         $ Rotation about the internuclear axis is symmetrical.

         $ Strong bonds are favoured.

Pi

   *Formed by the sidewisw overlap perpendicular to the internuclear axis.

   *Overlapped region is small.

   *Rotation about the internuclear axis is unsymmetrical.

  *Weak bonds are favoured.

Sigma bond is stronger than Pi bond because  because the orbital paths are parallel so there is much less overlap between the p-orbitals.

Hope it helps u

Thanx....Bye

Answer 2

Answer :

Sigma bond (σ bond) is formed by the axial overlapping of the atomic orbitals while the π-bond is formed by side wise overlapping. Since axial overlapping is greater as compared to side wise. Thus, the sigma bond is said to be stronger bond in comparison to a π-bond.

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