Exams › JEE Main › Chemistry

Match each type of intermolecular interaction in Column A with the correct distance dependence of its interaction energy in Column B. Column A: (I) ion-ion; (II) dipole-dipole; (III) London dispersion Column B: (a) 1/r; (b) 1/r²; (c) 1/r³; (d) 1/r⁶

1. (I)-(a), (II)-(b), (III)-(c)
2. (I)-(a), (II)-(c), (III)-(d)
3. (I)-(a), (II)-(b), (III)-(d)
4. (I)-(b), (II)-(d), (III)-(c)

Correct answer: (I)-(a), (II)-(c), (III)-(d)

Solution

Ion-ion energy ~ 1/r (Coulomb), fixed dipole-dipole energy ~ 1/r³, and London dispersion energy ~ 1/r⁶. This matches (I)-(a), (II)-(c), (III)-(d).

Related JEE Main Chemistry questions

• A sample of gas has a volume of 300 cc at 27°C under a pressure of 620 mm. What will its volume be at 47°C and 640 mm pressure?
• When the temperature of neon is increased from 20°C to 40°C, by what factor does the mean kinetic energy of its atoms change?
• Which gas is expected to show the greatest departure from ideal-gas behavior?
• Equal amounts (in moles) of hydrogen gas and oxygen gas are kept in a vessel that has a tiny pinhole, allowing both gases to effuse out. By the time one-half of the hydrogen has escaped, what fraction of the oxygen has escaped?
• Which of the following statements is incorrect regarding how raising the temperature affects the distribution of molecular speeds in a gas?
• As stated by the kinetic theory of gases, how does an ideal gas molecule move during the interval between two consecutive collisions?

⚔️ Practice JEE Main Chemistry free + battle 1v1 →