Advertisements
Advertisements
Question
What is the difference between a pure substance and a mixture ?
Short/Brief Note
Advertisements
Solution
- 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 means. All 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 retain its original properties. These can be separated by physical means.
shaalaa.com
Is there an error in this question or solution?
APPEARS IN
RELATED QUESTIONS
Name the process by which the components of following mixtures can be separated.
- Iron and sulphur
- Ammonium chloride and sand
- Common salt from sea water
- Chaff and grain
- Water and mustard oil
- Sugar and water
The methods of separating components of a given mixture are based on the
Define Compounds
What is the proportion of element present in the following compound?
H2O
What is the proportion of element present in the following compound?
CaO
Name two compounds which dissolve in water.
Explain the term compounds.
Tabulate a comparative chart – to differentiate between elements, compounds, and mixtures. Differentiate them with reference to Separation of compound
What is the molecular formula of the following compound?
Sodium chloride
When does the pressure of the gas increase?
