Question
The correct statements (s) about intermolecular forces is(are)
JEE Advanced
Chemistry
Chemical Bonding and Molecular Structure
2025
JEE Advanced 2025 (Paper 2)
JEE Advanced Chemistry Question (2025) — Solution
Options
- A. The 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.
- B. The average potential energy of two rotating polar molecules that are separated by a distance r has 1 / r^3 dependence.
- C. The dipole-induced dipole average interaction energy is independent of temperature.
- D. Nonpolar molecules attract one another even though neither has a permanent dipole moment.
Answer
D. Nonpolar molecules attract one another even though neither has a permanent dipole moment.
Step-by-step solution
(i) Ion - Ion Interaction energy 1 r Ion - dipole Interaction energy 1 r^2 Ion - dipole Interaction energy approaches zero more rapidly as ' r ' increases (ii) Rotating Polar molecules Interaction energy 1 r ^6 . (iii) Dipole - induced dipole forces are independent of temperature. (iv) Non-polar species show London dispersion forces.
Related: Chemistry — Chemical Bonding and Molecular Structure · All PYQ Banks