Answer:

BASIS FOR COMPARISON MIXTURES COMPOUNDS

Meaning

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.

Composition

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.

Properties

The properties of the mixtures also vary (not fixed) as it depends on the type of substances and the quantity by which these are being mixed. For the particular type of compound, the properties are fixed and do not vary, as the elements present in the compounds are fixed and are in the fixed ratio.

Formula Mixtures do not have a certain formula.

Compounds have a specific formula, depending on the CONSTITUENTS present.

Separation

The substances of the mixtures are easy to separate by different physical methods LIKE filtration, chromatography, evaporation.

The elements are not easy to separate and if done than it is by chemical methods.

Substances No NEW substances are formed from the mixtures, DUE to the unchangeable properties of its constituents.

There is always formation of the new substances, due to the mixing of the chemical properties of the different constituents.

Melting/Boiling point

Mixtures do not have fixed melting or boiling point.

The compound once formed, have fixed melting and boiling point.

Heat change

There is no heat change, or involvement of ENERGY is observed when mixtures are made. There is a heat change, and energy is used or released during the formation of the compounds, as it is a chemical reaction.