Parameter Compound MixtureMeaning A compound is a pure form comprising of two or more elements in a chemical combination A mixture is an impure substance involving two or more substances that are PHYSICALLY mixed.Composition The presence of elements in compounds is in a definite quantity The presence of substances in mixtures is not in a definite quantityFormula A compound certainly has a specific formula on the basis of its constituents Mixtures are devoid of a chemical formulaProperties The properties of a specific type of compound are definite and there is no VARIATION in them The properties of a mixture tend to VARY due to their dependence on the type of substances presentSubstances The formation of new substances always results in a compound because of the mixing of properties of the various elements Formation of new substances does not take place from the mixtures because the properties of its constituents are not changeableSeparation The elements of a compound are not easy to separate by physical methods The substances of a mixture are certainly easier to separate by various physical methods like chromatography, evaporation, FILTRATION, etcChange of heat There is a change of heat during the formation of a particular compound There is no heat change in mixtures when their formation takes placeMelting or Boiling point Compounds have an unchangeable definite melting or boiling point Mixtures lack a definite melting or boiling pointExamples of Compound and Mixture Methane, salt, baking soda, etc Brass, CHROMIUM, bismuth, etc