Advertisements
Advertisements
प्रश्न
Give a reason for the sigma (σ) bond is stronger than the Pi (π) bond.
Advertisements
उत्तर
- The strength of the bond depends on the extent of overlap of the orbitals. Greater the overlap, the stronger is the bond.
- A sigma bond is formed by the coaxial overlap of the atomic orbitals which are oriented along the internuclear axis, hence the extent of overlap is maximum.
- A pi bond is formed by the lateral overlap of the atomic orbitals which are oriented perpendicular to the internuclear axis, hence the extent of orbital overlapping in a sidewise manner is less.
Hence, the sigma (σ) bond is stronger than the Pi (π) bond.
APPEARS IN
संबंधित प्रश्न
Explain the formation of H2 molecule on the basis of valence bond theory.
Draw diagram for bonding in ethene with sp2 Hybridisation.
Draw an orbital diagram of Fluorine molecule
Give reasons for need of Hybridization
Explain geometry of methane molecule on the basis of Hybridization.
Give a reason for carbon is tetravalent in nature.
Identify the type of overlap present in F2. Explain diagrammatically.
Give the type of overlap by which the pi (π) bond is formed.
Mention the steps involved in Hybridization.
The ratio of number of sigma (σ) and pi (л) bonds in 2- butynal is ______.
Which one of the following is the likely bond angles of sulphur tetrafluoride molecule?
In ClF3, NF3 and BF3 molecules the chlorine, nitrogen and boron atoms are ______.
When ones and three p orbitals hybridise,
Which of these represents the correct order of their increasing bond order.
Define σ – bond.
Which bond is stronger σ or π? Why?
Considering x-axis as the molecular axis which out of the following will form a sigma bond.
1s and 2py
Considering x-axis as the molecular axis which out of the following will form a sigma bond.
2px and 2pz
Ethene molecule has ____________ sp2 -s σ bond(s), ____________ sp2 -sp2 σ bond(s) and ____________ p-p π bond(s).
Which of the following molecule contain 50% p-character of hybrid orbital in C atom?
Which of the following is correct decreasing order of the repulsive Interaction of electron pairs in a molecule?
The number of sigma bonds in paracetamol is ____________.
The overlap of orbitals involved in the formation of C - Br bond in vinyl bromide is ______.
Why does type of overlap given in the following figure not result in bond formation?
 |
 |
Which of the following statements is INCORRECT according to the valence bond theory?
The \[\ce{H - N - H}\] bond angle in ammonia molecule is ______.
