A solution is always a liquid. Comment.

Hint: A solution can be defined as a homogenous mixture of two or more substances. The word “homogeneous” refers to the fact that the composition of the mixture is the same throughout the mixture.

Complete answer:
A solution consists of two parts: the “solute” is present in smaller proportions and the “solvent” is present in larger proportions. Both these components of the solution can be present in either of the most common states of matter: solid, liquid, and gas.
When the solvent phase is liquid and the solute is solid that is the most common type of solution, for example the salt or the sugar solution. When the solvent is liquid and the solute is also liquid the example of that type of solution includes alcohol in water. When the solvent is liquid and the solute is a gas examples include the solution of carbon dioxide in water.
When the solvent is a gas, the solute is solid, examples include dust particles suspended in air. When the solvent is a gas and the solute is a gas, example include, air and finally if the solvent is a gas, the solute is a solid then it is called a solid aerosol.
From the above solution it is quite clear that “A solution is always a liquid”, this statement is not correct.

Note:
When both the solute and the solvent are solid in nature then that solution is called an alloy or a solid sol. For example, brass, bronze, duralumin, etc. When the solute is liquid but the solvent is solid then it is called a “Gel”. For example, gelatin. When the solute is gas but the solvent is a solid, examples that type of solution include the solute of hydrogen gas in platinum metal.