Molecular Orbital Theory (MOT)

IMPORTANT

Molecular Orbital Theory (MOT): Overview

This topic highlights the salient features of the molecular orbital theory. It explains formation of molecular orbital linear combination of atomic orbitals. It also discusses the types of molecular orbitals and energy level diagrams of molecular orbitals.

Important Questions on Molecular Orbital Theory (MOT)

MEDIUM
IMPORTANT

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

                                                                                                                                                                                                                               

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

 

 

EASY
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During the bond formation σ2px molecular orbital of 2p orbitals first filled than π2px,π2py molecular orbitals

EASY
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Over lapping of 2p orbitals of two atoms forms how many molecular orbitals between two atoms?

EASY
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Explain the formation of molecular orbitals by the overlapping of 2p atomic orbitals?

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Which of the following are the molecular orbitals formed from the overlapping of 1s atomic orbitals?

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List the molecular orbitals formed by the overlapping of 2s orbitals?

EASY
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List the molecular orbitals formed by the overlapping of 1s orbitals?

EASY
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What type of overlapping of atomic orbitals involved in the formation of bonding molecular orbitals?

HARD
IMPORTANT

Why proper orientation of atomic orbitals required for the overlapping of atomic orbitals.

EASY
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Write the important conditions required for the linear combination of atomic orbitals to form molecular orbitals.

EASY
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ABMO of the molecule is destabilise the energy.

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In chemical bonding theory, an _____ orbital is a type of molecular orbital that weakens the chemical bond.

EASY
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When the molecule is destabilise?

EASY
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Why the sigma orbital in the hydrogen molecule has a lower energy than the 1s atomic orbital of the hydrogen atom?

EASY
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Explain why an electron in the bonding molecular orbital has a lower energy than an electron in the atomic orbitals of either of the separated atom?

EASY
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What is stabilization energy regarding molecular orbitals?

EASY
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The energy level of an orbit is determined by the _____ value of that particular orbit.

MEDIUM
IMPORTANT

Which of these orbitals has a lower orbital energy level 3d or 4s?

HARD
IMPORTANT

Assertion. Molecular nitrogen is less reactive than molecular oxygen.

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