Answer: Option (c) is the correct answer.
Step-by-step explanation:
It is known that gas particles have high kinetic energy as a result, they move rapidly from one place to another. Due to this more number of collisions take place between its particles.
Hence, the particles touch each other when they colloid. And when there will be increase in temperature then molecules will have more kinetic energy.
Thus, we can conclude that the statement is false; gas particles can touch each other when they collide.