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प्रश्न
Classify the following as a physical or a chemical change.
Melting of wax
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उत्तर
Physical change
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संबंधित प्रश्न
Classify the following as chemical or physical change:
Boiling of water to form steam.
Explain the following giving an example.
Pure substance
When a candle burns, both physical and chemical changes take place. Identify these changes. Give another example of a familiar process in which both the chemical and physical changes take place.
Fill in the blank.
An earthquake is a .................. change.
What is a physical change ? Give two examples of physical changes.
Classify the following as a physical or a chemical change.
Burning of paper
Give three reasons why melting of wax, is considered a physical change while burning of a candle, a chemical change.
State whether the following statement is true or false. If false write the correct statement.
Melting of ice is an exothermic, irreversible chemical change.
Is a change of state of matter – a physical or a chemical change. Give reasons.
Name the following.
The gaseous product of the chemical change which takes place during respiration in living organisms.
