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Identify correct statements about $NO$ molecule:

(i) When $N O$ is ionized to $N O^{+}$ , the electron is removed from the $π^{*} 2 p$ orbital.

(ii) Bond order of $NO$ is $2.5$ and bond order of $N O^{+}$ is $3$ .

(iii) Bond length of $N O^{+}$ is greater than that of $NO$ .

(iv) It is similar to $N_{2}^{-}$ in all respect.

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Important Questions on Chemical Bonding and Molecular Structure

HARD

Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Molecular Orbital Theory (MOT)

According to Molecular Orbital Theory,

MEDIUM

Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Molecular Orbital Theory (MOT)

According to $MOT, O_{2}$ is paramagnetic in nature, what is the number of electrons in anti bonding molecular orbitals?

EASY

Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Molecular Orbital Theory (MOT)

In the molecular orbital diagram for the molecular ion

N_{2}^{+}

, the number of electrons in the

σ_{2 p}

molecular orbital is

HARD

Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Molecular Orbital Theory (MOT)

Decreasing order of stability of $O_{2}, O_{2}^{-}, O_{2}^{+}$ and $O_{2}^{2 -}$ is:

HARD

Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Molecular Orbital Theory (MOT)

Which of the following options represents the correct bond order?

HARD

Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Molecular Orbital Theory (MOT)

In which of the following processes, the bond order has increased and paramagnetic character has changed to diamagnetic?

EASY

Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Molecular Orbital Theory (MOT)

If an extra electron is added to the hypothetical molecule

C_{2},

this extra electron will occupy the molecular orbital:-

MEDIUM

Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Molecular Orbital Theory (MOT)

The correct bond order in the following species is:

HARD

Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Molecular Orbital Theory (MOT)

Which of the following diatomic molecules would be stabilised by the removal of an electron?

EASY

Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Molecular Orbital Theory (MOT)

The formation of molecular orbitals can be described by the linear combination of atomic orbitals. Which one of the following correctly represents the formation of bonding molecular orbital from the atomic orbitals having wave functions

ψ_{A}

and

ψ_{B} ?

EASY

Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Molecular Orbital Theory (MOT)

Stability of the species

{Li}_{2}, {Li}_{2}^{-} and {Li}_{2}^{+}

increases in the order of

MEDIUM

Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Molecular Orbital Theory (MOT)

Which of the following diatomic molecular species has only

π

bonds according to Molecular Orbital Theory?

MEDIUM

Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Molecular Orbital Theory (MOT)

In which of the following pairs of molecules/ions, both the species are not likely to exist?

MEDIUM

Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Molecular Orbital Theory (MOT)

Two pi and half sigma bonds are present in:

EASY

Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Molecular Orbital Theory (MOT)

Which one of the following molecules is expected to exhibit paramagnetic behaviour?

EASY

Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Molecular Orbital Theory (MOT)

Which of the following is paramagnetic?

EASY

Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Molecular Orbital Theory (MOT)

Which of the following species is not paramagnetic?

MEDIUM

Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Molecular Orbital Theory (MOT)

Which statements are correct for the peroxide ion ?

MEDIUM

Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Molecular Orbital Theory (MOT)

During the change of

O_{2}

O_{2}^{-}

, the incoming electron goes to the orbital:

EASY

Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Molecular Orbital Theory (MOT)

After understanding the assertion and reason, choose the correct option.

Assertion: In the bonding molecular orbital (MO) of

H_{2},

electron density is increased between the nuclei.
Reason: The bonding MO is

ψ_{A} + ψ_{B}

, which shows destructive interference of the combining electron waves.

Identify correct statements about NO molecule: (i) When NO is ionized to NO+, the electron is removed from the π*2p orbital. (ii) Bond order of NO is 2.5 and bond order of NO+ is 3. (iii) Bond length of NO+ is greater than that of NO. (iv) It is similar to N2- in all respect.

Important Questions on Chemical Bonding and Molecular Structure

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