Why is `HCl` predominantly covalent in the gaseous state but ionic in the aqueous solution?

Why is HCl predominantly covalent in the gaseous state but is ionic in squeous solution ?

The compound is covalent in gaseous state but ionic in solid state is.

The compound is covalent in gaseous state but ionic in solid state is.

The seqeunce of ionic mobility in the aqueous solution is

The seqeunce of ionic mobility in the aqueous solution is

Give reason : Ammonia is unionised in the gaseous state but in the aqueous solution is a weak electrolyte

The sequence of ionic mobility in aqueous solution is:

The sequence of the ionic mobility in the aqueous solution is