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प्रश्न
Physical Change: Boiling::Chemical Change: ______.
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उत्तर
Physical Change: Boiling::Chemical Change: Burning
APPEARS IN
संबंधित प्रश्न
Write true or false for the statement.
Burning of paper and formation of curd are reversible changes
Define physical change. Give two examples for the above changes.
State whether the following is physical or chemical changes.
lightning —
Tick (√) the correct alternative from the choice given for the following statement
A pop sound is heard when a lighted match stick is brought near the mouth of a jar. This indicates the release of gas.
Write true or false
Burning of paper and formation of curd are reversible changes.
Write true or false
Deforestation is a man-made change.
Classify the following as physical or chemical change :
Condensation of steam
Classify the following as a physical or a chemical change.
Burning of coal
Ice kept in a beaker, slowly melts and turns into water. The water in the beaker on solidification is freezing turns back to ice. Give four reasons why the change from ice to water and water back to ice is considered a physical change.
State whether the following statement is true or false. If false write the correct statement.
Melting of butter and wax are examples of chemical changes.
