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प्रश्न
Write true or false
Burning of sugar is a temporary change.
पर्याय
True
False
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उत्तर
False
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संबंधित प्रश्न
Classify the following as chemical or physical change:
Melting of butter in a pan
A physical change is temporary. Explain.
State the various conditions that favour the process of evaporation.
State whether the following is physical or chemical changes.
Slaking of lime —
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.
True or false
Is the process of digestion a physical change?
Classify the following as physical or chemical change :
Condensation of steam
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.
Name the following:
The type of change physical or chemical involved – ‘when a substance undergoes a change in state, colour or size’.
Water is the universal solvent. Why?
