Mixture


 
 
Concept Explanation
 

Mixture

Mixture is present everywhere. Mixture is a substance which contains two or more pure substances mixed together in varying proportions. These substances which are mixed to form a mixture are called constituents or components. Air is a mixture of gases. A mixture can be homogeneous or heterogeneous. They are held together by physical forces and not chemical forces.

When you see distilled water, it's  a pure substance. That fact mean that there are just water molecules in the liquid. A mixture would be water with other things dissolved inside, may be salt. Each of the substances dissolved in water keeps the original chemical properties.

The substances that make up a mixture can be separated by physical means because they have different physical properties and are nto chemically bonded. A mixture can be separated into its parts in a variety of ways, including decantation, filtering and evaporation.

Examples  :-

  • Air is a mixture of nitrogen, oxygen , carbon dioxide, water vapour and a small amount of other substances.
  • Gunpowder is a mixture of nitre, sulphur and coal.
  • Steel is a mixture of iron, carbon, and small amounts of nickel, chromium, manganese and vanadium.
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    Sample Questions
    (More Questions for each concept available in Login)
    Question : 1

    Which of the following are mixtures ?

    (a) Fruit Juice

    (b) Sugar Solution

    (c) Air

    (d) Butter

    Right Option : D
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    Explanation
    Question : 2

    A homogeneous mixture among the following is ___________

    Right Option : D
    View Explanation
    Explanation
    Question : 3

    Among the following substances, which one is a mixture?

    Right Option : D
    View Explanation
    Explanation
     
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