Molecular Orbital Theory (MOT)

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

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

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

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

Which of the following is correct order of stability?

Write the postulates of Molecular orbital theory.

According to MOT, ${\mathrm{C}}_2$ molecule has

Write molecular orbital energy diagrams(MOEDs) for

$\mathrm{a}) {\mathrm{N}}_2 \mathrm{b}){\mathrm{O}}_2$

Molecular orbitals $\sigma ,\sigma *$ are denoted as $\sigma ={\psi }_{\mathrm{A}}+{\psi }_{\mathrm{B}},{\sigma }^{*}={\psi }_{\mathrm{A}}-{\psi }_{\mathrm{B}}$, here $\psi$ is called

The ${\mathrm{\pi }}^{*}$ molecular orbital has _________ nodal planes.

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

${\mathrm{O}}_2^{-},{\mathrm{N}}_2, {\mathrm{C}}_2,{\mathrm{CN}}^{-}, {\mathrm{B}}_2 \mathrm{and} {\mathrm{O}}_2^{2+}$

Which of the following species has equal bond order?

Which of the following cases both the molecules are paramagnetic?

The increasing stability of molecular species is as follows:

Consider the given statements w.r.t. the molecular orbital theory

I. The highest occupied molecular orbital in ${\mathrm{N}}_2$ molecule is ${\mathrm{\pi }}_{2\mathrm{px}}={\mathrm{\pi }}_{2\mathrm{py}}$.

II. The bond order of ${\mathrm{N}}_2^{-}$ and ${\mathrm{N}}_2^{+}$ are identical.

III. ${\mathrm{C}}_2$ contains two bonds of which both are $\mathrm{\pi }$ bonds.

IV. ${\mathrm{O}}_2^{2+}$ and ${\mathrm{N}}_2$ are isoelectronic but they have different highest occupied molecular orbital.

The set containing correct statement(s) is/are

If an extra electron is added to the hypothetical molecule ${\mathrm{C}}_2,$ this extra electron will occupy the molecular orbital:-

The diamagnetic species among the following is