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प्रश्न
Name the following:
The term involved in the change of state from – ‘water to ice’ – which is a physical change.
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उत्तर
Freezing Point.
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संबंधित प्रश्न
Classify the following as chemical or physical change:
Boiling of water to form steam.
Classify the changes involved in the following process as physical or chemical changes:
Photosynthesis
Changes in which only ______ properties of a substance change are called physical changes.
State whether the following is physical or chemical changes.
(energy produced) dissolving sugar in water —
Classify the following as physical or chemical change :
Formation of curd from milk
Define a chemical change. Give two examples of the above changes.
State what is meant by the term – interconversion of matter. Is interconversion of matter a physical change or a chemical 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.
Compare the energy changes involved during a physical and a chemical change.
Assertion: Burning of wood log to charcoal is a physical change.
Reason: The products formed of burning a piece of wood can be easily converted back to wood log.
