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प्रश्न
Select the correct answer from the choice given below to complete the sentence
A change in which a substance retains its identity is a
______ change.
विकल्प
physical
chemical
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उत्तर
A change in which a substance retains its identity is a physical change.
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संबंधित प्रश्न
Write short answer.
Name two reversible changes.
Make a list of different types of changes with example.
True or false
Dissolving of a solid in liquid is a physical change.
Fill in the blank
Heat is ________ by a gas during the process of condensation.
Separate the following into physical and chemical changes :
Sublimation of a solid, Decomposition of water into hydrogen and oxygen by passing electric current, Formation of clouds, Making a fruit salad from raw fruits, Dissolving carbon dioxide in water
Name the following:
The term involved in the change of state from – ‘water to ice’ – which is a physical change.
Give a reason why
Freezing of water is a reversible change while burning of a candle – an irreversible change.
Select the chemical changes from the following list of changes
Change of seasons
Name the following.
A form of energy required for a chemical change.
Give an example to justify the statement that physical changes can be reversible as well as irreversible.
