σ bond

π-bond

(i) Sigma bond is formed

by    s-s, s-p, p p-axial

overlapping

(i) π-bond is formed by p

p lateral overlapping

(ii) Sigma bond is a

stronger bond because

extent of overlapping is

large

(ii) π-bond is a weak bond

because extent of

overlapping is smaller    

(iii) It is a stable and less

reactive

(iii) It is a less stable and

more reactive

(iv) The electron cloud

formed         by axial    

overlapping is

symmetrical along the

internuclear axis and

consist of single electron

cloud.

(iv) The electron cloud

formed by lateral

overlapping is

unsymmetrical and

consist of two electron

cloud above and below    

the plane

(v) The shape of the

molecule is determined

by σ bonds

(v) π-bond does not

affect the shape of the

molecule