What is the difference between a pure substance and a mixture ?

1.	What is the difference between a pure substance and a mixture ?
Answer» A pure substance consists of only one kind of matter, that is. all the particles are same. It has a definite composition and constant properties. It cannot be split into simpler substances by physical metal pure substances have characteristic melting and boiling points. A pure substance is either a compound or an element. A mixture contains two or more substances in any proportion which can be separated by physical methods. Mixtures are generally of two types: Homogeneous and Heterogeneous. In a mixture, the constituents can be present in any ratio. They do not have characteristic melting and boiling points. In a mixture, each constituent retains its original properties. These can be separated by physical means.

Answer»

A pure substance consists of only one kind of matter, that is. all the particles are same. It has a definite composition and constant properties. It cannot be split into simpler substances by physical metal pure substances have characteristic melting and boiling points. A pure substance is either a compound or an element.

A mixture contains two or more substances in any proportion which can be separated by physical methods. Mixtures are generally of two types: Homogeneous and Heterogeneous. In a mixture, the constituents can be present in any ratio. They do not have characteristic melting and boiling points. In a mixture, each constituent retains its original properties. These can be separated by physical means.

Discussion

No Comment Found

Related InterviewSolutions

Take a piece of chalk and keep on dividing it in to smaller pieces, what will happen?
What happens when the lid of a bottle of perfume is opened?
Wipe a drop of ink with a handkerchief what effect does it have on the cloth of the handkerchief?
What is the difference between a pure substance and a mixture ?
Name the substance you will add to speed up sedimentation.
Fractional distillation is used to separate liquids having an appreciable difference in their1. size and shape2. solubility3. boiling points.4. none of these
The constituents of a mixture are present in a fixed ratio1. a fixed ratio2. a variable ratio,3. the ratio of 2 : 14. none of these
A separating funnel can be used for separating a mixture of immiscible liquids. True or false ?
Fill in the blanks.1. A .................substance has only one kind of matter.2. The composition and properties of a............... mixture is uniform throughout.3. An............... is a homogeneous mixture of two or more metals.4. Chalk powder dissolved in water is an example of a...................5. An.................. is formed when one liquid is dispersed as tiny droplets throughout another liquid.6. Immiscible liquids are separated by using a................
Loading is a process in which1. impurities become heavy and sink to the bottom.2. impurities float on the top.3. impurities vaporize.4. none of these