| Mixtures | Compounds |
| Mixtures are the impure substances, made up of two or more physically mixed substances. They can be homogeneous or heterogeneous by nature. | Compounds are the pure form, made up of two or more chemically mixed elements. These are generally homogeneous. |
| The substances which are found in the mixtures are not in fixed quantity, that means their ratio varies. | But in the case of compounds, the elements are present in fixed quantity, that means their ratio is fixed. |
| Mixtures do not have a certain formula. | Compounds have a specific formula, depending on the constituents present. |
