Chemical Bonding and Molecular Structure — JEE Advanced PYQs

The correct order of dipole moments for the given species is

Reaction of ${\mathrm{PtF}}_6$ with oxygen $\left({\mathrm{O}}_2\right)$ gas results in the formation of an ionic compound, ${\mathbf{X}}^{+}{\mathbf{Y}}^{-}$.
Correct statement(s) is (are)

Consider the following species :
${\mathrm{SOCl}}_2,{\mathrm{XeOF}}_4,{\mathrm{ClF}}_3,{\mathrm{ClF}}_5,{\mathrm{XeF}}_5^{+},{\mathrm{SO}}_3^{2-},{\mathrm{XeF}}_3^{+},{\mathrm{SF}}_4$
List-I contains different molecular shapes and List-II contains total number of species …

The correct order of ONO bond angle in the given species is:

Regarding the molecular orbital (MO) energy levels for homonuclear diatomic molecules, the INCORRECT statement(s) is(are)

The correct statements (s) about intermolecular forces is(are)

The option(s) in which at least three molecules follow Octet Rule is(are)

The correct molecular orbital diagram for ${\mathrm{F}}_2$ molecule in the ground state is

Among ${\left[{\mathrm{I}}_3\right]}^{+},{\left[{\mathrm{SiO}}_4\right]}^{4-},{\mathrm{SO}}_2{\mathrm{Cl}}_2,{\mathrm{XeF}}_2,{\mathrm{SF}}_4,{\mathrm{ClF}}_3,\mathrm{Ni}(\mathrm{CO}{)}_4,{\mathrm{XeO}}_2{\mathrm{F}}_2,{\left[{\mathrm{PtCl}}_4\right]}^{2-},{\mathrm{XeF}}_4$ …

The total number of ${\mathrm{sp}}^2$ hybridised carbon atoms in the major product P (a non-heterocyclic compound) of the following reaction is ____.

(see reaction scheme)

For diatomic molecules, the correct statement(s) about the molecular orbitals formed by the overlap to two $2p_{\mathrm{z}}$ orbitals is(are)

Thermal decomposition of ${\mathrm{AgNO}}_3$ produces two paramagnetic gases. The total number of electrons present in the antibonding molecular orbitals of the gas that has the higher number of unpaired electrons is ____.

In the reaction given below, the total number of atoms having $s{p}^2$ hybridization in the major product P is ____

Consider the following compounds in the liquid form :
${\mathrm{O}}_2,\mathrm{HF},{\mathrm{H}}_2\mathrm{O},{\mathrm{NH}}_3,{\mathrm{H}}_2{\mathrm{O}}_2,{\mathrm{CCl}}_4,{\mathrm{CHCl}}_3,{\mathrm{C}}_6{\mathrm{H}}_6,{\mathrm{C}}_6{\mathrm{H}}_5\mathrm{Cl}$.
When a …

The figure below is the plot of potential energy versus internuclear distance $(d)$ of ${\mathrm{H}}_2$ molecule in the electronic ground state. What is the value of the net potential energy $E_0$ (as indicated in the figure) in $\mathrm{kJ}{\mathrm{mol}}^{-1}$, for …

Each of the following options contains a set of four molecules. Identify the option(s) where all four molecules possess permanent dipole moment at room temperature.

Among the following, the correct statement(s) is(are)

The sum of the number of lone pairs of electrons on each central atom in the following species is

(Atomic numbers: …

Among ${\mathrm{H}}_2,{\mathrm{He}}_2^{+},{\mathrm{Li}}_2,{\mathrm{Be}}_2,{\mathrm{B}}_2,{\mathrm{C}}_2,{\mathrm{N}}_2,{\mathrm{O}}_2^{-}$, and ${\mathrm{F}}_2$, the number of diamagnetic species is (Atomic numbers: …

The compound(s) with TWO lone pairs of electrons on the central atom is(are)

According to Molecular Orbital Theory,

The total number of lone pairs of electrons in ${\mathrm{N}}_2{\mathrm{O}}_3$ is

Among the triatomic molecules/ions, ${\mathrm{BeCl}}_2,{\mathrm{N}}_3^{-},{\mathrm{N}}_2\mathrm{O},{\mathrm{NO}}_2^{+},{\mathrm{O}}_3,{\mathrm{SCl}}_2,{\mathrm{ICl}}_2^{-},{\mathrm{I}}_3^{-}$and ${\mathrm{XeF}}_2$, the total number of linear molecule(s)/ion(s) where t …

Hydrogen bonding plays a central role in the following phenomena:

A list of species having the formula ${\mathrm{XZ}}_4$ is given below. …

Isomers of hexane, based on their branching, can be divided into three distinct classes as shown in the figure.

I

II

III

The correct order of their boiling point is

Assuming $2s-2p$ mixing is NOT operative, the paramagnetic species among the following is

Match the orbital overlap figures shown in List-I with the description given in List-II and select the correct answer using the code given below the lists.

List-I

P. (see structure)

Q. (see structure)

R. (see structure)

S. (see structure)

List-II

1. $p-d\pi$ antibonding …

The total number of lone-pairs of electrons in melamine is

The shape of ${\mathrm{XeO}}_2{\mathrm{F}}_2$ molecule is

In allene (${\mathrm{C}}_3{\mathrm{H}}_4$), the type(s) of hybridisation of the carbon atoms is (are)

The species having pyramidal shape is

Assuming that Hund's rule is violated, the bond order and magnetic nature of the diatomic molecule ${\mathrm{B}}_2$ is

Match each of the diatomic molecules in Column I with its property/properties in Column II.
| (C) ${\mathrm{O}}_2^{-}$ | (r) Undergoes reduction | …