Step-by-step explanation:
A gas is state of matter in which there is large intermolecular distance and hence, a weaker molecular force of attraction in comparison to solids and liquids. therefore, it impart certain properties to gases which are uncommon in solids and liquids
Properties of a gas includes:
Exert pressure on the container
Highly compressible
Low density
and readily soluble in other mediums
Hence, high density is not a property of a gas.