JEE Advanced 2025Paper 2

JEE Advanced 2025 · Paper 2 · Chemistry · Chemical Bonding and Molecular Structure

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

Options

AThe potential energy between two point charges approaches zero more rapidly than the potential energy between a point dipole and a point charge as the distance between them approaches infinity.
BThe average potential energy of two rotating polar molecules that are separated by a distance $r$ has $1 / r^3$ dependence.
CThe dipole-induced dipole average interaction energy is independent of temperature.
DNonpolar molecules attract one another even though neither has a permanent dipole moment.

C. The dipole-induced dipole average interaction energy is independent of temperature.

(i) Ion - Ion

\rightarrow

Interaction energy

\propto \frac{1}{r}

Ion - dipole

\rightarrow

Interaction energy

\propto \frac{1}{r^2}

Ion - dipole Interaction energy approaches zero more rapidly as '

r

' increases (ii) Rotating Polar molecules

\rightarrow

Interaction energy

\propto \frac{1}{\mathrm{r}^6}

. (iii) Dipole - induced dipole forces are independent of temperature. (iv) Non-polar species show London dispersion forces.