Molecular Orbital Theory (MOT)

IMPORTANT

Molecular Orbital Theory (MOT): Overview

This topic covers concepts such as Molecular Orbital Theory, Differences between Atomic and Molecular Orbitals, Conditions for Combination of Atomic Orbitals to Form Molecular Orbitals, Stability in Terms of Bond Order, etc.

Important Questions on Molecular Orbital Theory (MOT)

MEDIUM
IMPORTANT

The following pairs of compounds can be distinguished by which of the following tests:

 (i) Ethylamine and aniline

(ii) Aniline and N-methylaniline

MEDIUM
IMPORTANT

Which of the following species has four lone pairs of electrons?

                                                                                                                                                                                                                               

EASY
IMPORTANT

The bond order in   NO is 2.5 while that in   NO +  is 3. Which statement is true for these two species:

 

 

HARD
IMPORTANT

Assertion. Molecular nitrogen is less reactive than molecular oxygen.

Reason. The bond length of N2 is shorter than that of oxygen

HARD
IMPORTANT

Assertion : H2 molecule is more stable than HeH molecule.

Reason : The anti bonding electron in the molecule destabilises it.

EASY
IMPORTANT

Label the molecular orbitals formed by the combination of atomic orbitals 2s+2s.

EASY
IMPORTANT

Explain how p-p orbital overlapping along the internuclear axis.

MEDIUM
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Explain how s-s orbital overlapping along the internuclear axis.

MEDIUM
IMPORTANT

Shape of px-orbital and s-orbital is _____ respectively.

EASY
IMPORTANT

Write the salient features of molecular orbitals.

EASY
IMPORTANT

Write any three differences between molecular orbitals and atomic orbitals.

EASY
IMPORTANT

What will be the bond order of the species with electronic configuration  1s2 2s2 2p5?(one/two/three)

HARD
IMPORTANT

Calculate the bond order and predict the magnetic property of B2 molecule.

MEDIUM
IMPORTANT

The diamagnetic species among the following is 

HARD
IMPORTANT

Among the following, the species with identical bond order are

EASY
IMPORTANT

Which among the following species is paramagnetic in nature?

HARD
IMPORTANT

The correct bond order in the following species is

MEDIUM
IMPORTANT

Molecules having no unpaired electrons gives rise to _____ character. (Diamagnetic/Paramagnetic)