Difference between stigma and pie bond

1.	Difference between stigma and pie bond
Answer» \tSigma BondPi BondDuring sigma bond formation overlapping orbitals can be either one hybrid and one pure orbital or two pure orbitals and two hybrid orbitals.During pi bond formation overlapping orbitals are always two unhybridized orbitals.Sigma bond exists independently and allows free rotation.Pi-bond always exists along with sigma bond and the rotation is restricted.Sigma bonds are stronger bonds.Pi bonds are usually less powerful compared to sigma bonds.Sigma bonds are formed first when atoms interact.Pi bonds are formed after the formation of sigma bonds.During the bonding between two atoms, Only one sigma bond is formed.Here two pi bonds can exist between two atoms.\t

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