Sigma bond is stronger than pi bond.Explain.
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The strength of a covalent bond depends upon the extent of overlap. Greater the overlap,stronger is the bond. A sigma bond is formed by axial overlap of the orbitals while pi bond by the sidewise or lateral overlap. Since the axial overlap is more effective than the sidewise overlap,greater energy is will be realised in axial ovrlap as compared to sidewise overlap. So sigma bond is stronger than pi bond.
