Molecular Orbital Energy Diagrams
Trending Questions
Which of the following molecule is paramagnetic
Chlorine
Nitrogen
Oxygen
Hydrogen
- + 1
- + 4
- + 3
- – 3
Which of the following have same bond order?
The quantum numbers for the outermost electron of an element are given below as n=2, l=0, m=0, s=+12. The atoms is
Beryllium
Hydrogen
Boron
Lithium
Which of the following is not correct about Molecular Orbital theory?
The atomic orbitals of comparable energies and proper symmetry combine to form molecular orbitals.
The bonding molecular orbital has lower energy and hence greater stability than the corresponding anti-bonding molecular orbital.
The molecular orbitals are not filled in accordance with the aufbau principle.
An atomic orbital is mono-centric while a molecular orbital is polycentric.
Which of the following species have identical bond order?
None of the above
- σ(1s)2σ∗(1s)2σ(2s)2σ∗(2s)2π(2p)4σ(2p)1
- σ(1s)2σ∗(1s)2σ(2s)2σ∗(2s)2σ(2p)1π(2p)3
- σ(1s)2σ∗(1s)2σ(2s)2σ∗(2p)2π(2p)4
- σ(1s)2σ∗(1s)2σ(2s)2σ∗(2s)2σ(2p)2π(2p)2
- 2.5 and 3
- 2 and 4
- 3.5 and 2.5
- 4 and 2
differentiate between:
a) valence bond theory and molecular bond theory
b) atomic orbitals and molecular orbitals
- (σ1s)2
- (σ1s)2(σx1s)2
- (σ1s)3
- None of the above
- σ(1s)2σ∗(1s)2σ(2s)2σ∗(2s)2π(2p)4σ(2p)1
- σ(1s)2σ∗(1s)2σ(2s)2σ∗(2s)2σ(2p)1π(2p)3
- σ(1s)2σ∗(1s)2σ(2s)2σ∗(2p)2π(2p)4
- σ(1s)2σ∗(1s)2σ(2s)2σ∗(2s)2σ(2p)2π(2p)2
- Cr+3, Fe+3
- Fe+3, Mn+2
- Fe+3, Co+3
- Sc+3, Cr+3
- For O2 to Ne2
- For H2 to N2
- For H2 to Ne2
- For N2 to Ne2
according to VBT , electrons lie in overlapping region of two atomic orbitals whereas according to MOT electrons lie in new orbitals.So, where do electrons actually lie?
Select the correct statement for non-bonding and anti-bonding orbitals:
Non - bonding orbitals have same energy as that of the atomic orbitals from which they are formed.
Anti - bonding orbitals have higher energy than the atomic orbitals from which they are formed
Non - bonding orbital have higher energy than the atomic orbitals from which they are formed
Anti - bonding orbital have lower energy than the atomic orbitals from which they are formed
Explain on the basis of molecular orbital theory why bond order decreases when N2 changes to N2+ while it increases when O2 changes to O2+.