Answer: The texture is one of the most important physical characteristics of the solid or liquid materials.
Texture is actually the physical feel of the surface layer of a material when we physically touch it.
So,by it's definition we came to know that the texture is only possible for the substances which have physical surfaces.
And the gaseous materials don't have any physical surface to feel it's texture.
That's why gaseous materials including hydrogen gas don't have any kind of texture.
Step-by-step explanation: