Question

When candle burns, both physical and chemical changes take place. Give another examples of a familiar process in which both the chemical and physical changes
take place.
​

Answer 1

Answer:

freezing of water.....

may be

Explanation:

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Answer 2

Answer:

When a candle burns, both physical and chemical changes occur.

• Physical Changes: On heating, candle wax gets melted. Since it again turns into solid wax on cooling. So, the melting of wax and vapourisation of melted wax are physical changes.

• Chemical Changes : The wax near flame burns and gives new substances like carbon dioxide, carbon soot, water vapour, heat and light.

• LPG is another example of a familiar process in which both the chemical and physical changes take place. LPG is present in liquid form in the cylinder. When it comes out of the cylinder, it converts into gaseous form which is a physical change. It undergoes chemical change when gas burns in air.

Explanation:

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