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NCERT Solutions, CBSE Sample paper, Lattest Syllabus, NCERT Books, Last Year Question Papers and Many More ...

     

Substance and Type of Substances

Mixture, Homogeneous Mixtures, Heterogeneous mixtures

Solution, Properties of Solution

Suspension, Properties of Suspension

Colloid, Properties of Colloid

Tyndall Effect

Method of Separating the Component of Mixture

obtain the coloured component (dye) from a ink

Use of separating funnel

Sublimation

Centrifugation

Chromatography

Method of Simple Distillation

Method of Fractional Distillation

Obtain Different Gases from Air

Crystallisation, Application of Crystallisation

Physical Change

Chemical Change

Diagram of water purification system

Differentiate between mixtures and compounds.

Classification table of matter.

 

What is a chemical change? Give example.
Answer: A change in which a substance reacts with another substance to undergo a change in chemical composition. For example burning of a candle in which wax burns and converted into carbon dioxide and water.




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