States & mixtures
Solution — দ্রবণ
Quick answer
A homogeneous mixture where a solute dissolves fully in a solvent — every drop identical, particles too small to filter.
Definition
A solution is a homogeneous mixture in which one substance, the solute, dissolves completely in another, the solvent, so every drop has the same taste and concentration. The particles of the solute are individual molecules or ions, far too small to see or to be filtered out. Salt water, sugar water, and the air itself are all solutions. Unlike a suspension, a true solution stays clear and never settles on standing.
For example
Stir a spoon of sugar into a glass of water until it disappears: you get a sugar solution whose every drop is equally sweet, and no filter paper can get the sugar back.