1.

Differentiate between sigma [σ] and pi [π] L bond.

Answer»
Sigma (σ) bondPi (π) bond
(i) Overlapping is quite large and hence sigma bond is a strong bond.Overlapping is to a small extent. Hence, π- bond is a weak bond.
(ii) Electron cloud in this case is symmetrical about the line joining the two nuclei.Electron cloud of π-bond is unsymmetrical.


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