- Compounds are pure substances and always homogeneous by nature.
- A compound is formed when two or more elements reacts chemically in a fixed proportion by mass. For example NaOH, NaCl and HCl are compounds.
- Every particles of a compound are alike and show same characteristics.
- Constituent elements of a compound can be separated only by chemical means.
- A compound has a definite set of physical and chemical properties which are different from its constituent elements.
- When two or more elements join chemically a compound is formed which is a whole new substance.
- Mixtures are impure substances and generally have heterogeneous nature.
- A mixture is formed when two or more elements or Compounds or both mixed together in any proportion. Examples of Mixtures are Air, Petroleum and Urine.
- Particles of a mixture are not alike. It contains the particles of its each constituent substances.
- The constituent substances of a mixture can be separated only by physical means.
- A mixture does not have any specific properties. It shows the properties of its constituent substances.
- When two substance are mixed together then a mixture is formed which is not a new substance.