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प्रश्न
Write true or false
Melting of ice is a physical change.
विकल्प
True
False
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उत्तर
True
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संबंधित प्रश्न
Tick the most appropriate answer.
5. Photosynthesis requires
- heat energy.
- wind energy
- sunlight.
- sound energy
Make a list of different types of changes with example.
State whether the following is physical or chemical changes.
Slaking of lime —
A physical change is temporary. Explain.
Classify the following as a physical or a chemical change.
Burning of paper
Ammonium chloride is also a sublimable solid. Give a reason why the sublimation of ammonium chloride involves a physical and a chemical change.
Fill in the blank with the appropriate word of the statement given below:
If a change is permanent and irreversible it is considered a _________ change.
Is a change of state of matter – a physical or a chemical change. Give reasons.
______ is the Universal Solvent.
Give an example to justify the statement that physical changes can be reversible as well as irreversible.
