Molecular Orbital Theory (MOT)

IMPORTANT

Molecular Orbital Theory (MOT): Overview

This Topic covers sub-topics such as Molecular Orbital Theory, Linear Combination of Atomic Orbitals, Salient features of Molecular Orbital Theory, Energy of Atomic Orbitals and, Energy Level Diagram of Molecular Orbitals

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

The number and type of bonds between two carbon atoms in calcium carbide are

EASY
IMPORTANT

Which of the following has the minimum bond length?

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:

 

 

MEDIUM
IMPORTANT

The correct molecular orbital diagram for F2 molecule in the ground state is

MEDIUM
IMPORTANT

In which of the following processes, the bond order increases and paramagnetic character changes to diamagnetic one?

MEDIUM
IMPORTANT

In which of the following options the species changes from paramagnetic to diamagnetic and bond order increases.

MEDIUM
IMPORTANT

The bond order and magnetic property of acetylide ion is same that of 

MEDIUM
IMPORTANT

Explain Molecular Orbital Theory.

MEDIUM
IMPORTANT

Paramagnetic species among the given is:

MEDIUM
IMPORTANT

Which of the following is correct order of stability?

MEDIUM
IMPORTANT

Write the postulates of Molecular orbital theory.

HARD
IMPORTANT

Why different shells of an atom denoted by K, L, M, N ?

EASY
IMPORTANT

In oxygen and carbon molecule the bonding is

HARD
IMPORTANT

How many of the following species have the bond order 2 ?
C2, B22-,N22+,CN+,NO-,O2,C2+

MEDIUM
IMPORTANT

The bond lengths of C2, N2 and B2 molecules are X1,X2 and X3pm respectively. The correct order of their bond lengths is

EASY
IMPORTANT

Why abmo is at high energy level than bmo?

MEDIUM
IMPORTANT

Molecular orbitals σ,σ* are denoted as σ=ψA+ψB,σ*=ψA-ψB, here ψ is called

HARD
IMPORTANT

If s and p-orbital mixing is operative in all species given, then how many following species is/are paramagnetic in nature?

O2-,N2, C2,CN-, B2 and O22+