The force of attraction between the particles of matter is maximum in:
- liquid alcohol
- flowing water
- a copper rod
- still air
Show answer and solution
Correct answer: C. a copper rod
1. Interparticle force of attraction is strongest when particles are closely packed.
2. Solids have the most tightly packed particles, then liquids, then gases.
3. Among the options, the copper rod is a solid, so the force is maximum there.
_Source: RRB Group D CEN-02/2018 PYQ, Q.86._