Question

State four difference between compounds and mixtures.

Answer 1

$\begin{array}{cc}\text{Compound}& \text{Mixture}\\ 1.\text{A compound is a pure substance.}& 1.\text{A mixture is an impure substance.}\\ \text{2. Compounds are always homogeneous.}& \text{2. Mixtures may be homogeneous or heterogeneous}\end{array}$
$\begin{array}{cc}\text{3. A compound has a fixed composition, i.e., it is}& \text{3. A mixture has no fixed composition, i.e., it is fort}\\ \text{formed when two or more pure substances}& \text{by mixing two or more substances in any ratio with}\\ \text{chemically combine in a definite ratio by mass.}& \text{any chemical reaction.}\\ \text{4. Formation of a compound involves change in}& \text{4. Formation of a mixture does not involve any change}\\ \text{energy.}& \text{in energy.}\end{array}$
$\begin{array}{cc}5.\text{Compounds have specific set of properties.}& 5.\text{Mixtures do not have any specific set of property}\\ 6.\text{Components of compounds can be separated}& 6.\text{Components of mixtures can be separated by}\\ \text{only by complex chemical processes.}& \text{simple physical methods.}\end{array}$