Ans: There are multiple reasons why Freon gas is used as a refrigerant in the refrigerator. First of all, it does not cause ozone layer depletion when they go out in the atmosphere. Secondly, it is a non-flammable gas, and there is no risk of unforeseen circumstances in case of any major leakage from the refrigerator. Thirdly, it has a low evaporation point which is why the conversion from liquid to gas state becomes fast, and thereby, the cooling process also becomes quicker.