Gas is the state 1 of a matter and solid is the state 2.
Step-by-step explanation:
The form of a matter that spreads in a container across its whole volume and take the shape of that container is named as Gas. It itself has no volume or shape, it is low in density and has kinetic energy in its particles.
The solid on the other hand has closely connected particles and are bounded. It makes the physical substances of this world. It has a stable shape and has a volume.