Answer: Option (d) is the correct answer.
Step-by-step explanation:
It is known that gases at low pressure and high temperature behave ideally as they do not have any intermolecular forces of attraction between them.
Whereas it temperature is decreases or lowered then molecules of the gas will come closer to each other.
As a result, there will be increase in the intermolecular forces of attraction and very less or no repulsion will take place between the molecules. Hence, gas will behave non-ideally at low temperature.
Thus, we can conclude that it is true for a gas under conditions of very low temperature that PV/nRT = 1, because particles are unable to overcome intermolecular attractions.