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प्रश्न
Select the chemical changes from the following list of changes
The crystallisation of salt from its solution.
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उत्तर
The crystallisation of salt from its solution is a PHYSICAL change as only state changes (crystals are formed), the composition does not change, is reversible, no change in mass takes place.
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संबंधित प्रश्न
Classify the following as chemical or physical change:
Dissolving common salt in water.
Write true or false for the statement
A natural change can also be a desirable change
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Burning of sugar is a temporary change.
Classify the following as physical or chemical change :
Formation of curd from milk
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The reaction in which energy is evolved is called
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Fill in the blank with the correct word of the statement given below:
Sublimation of iodine is an example of _________ change.
Give four reasons why the burning of a magnesium ribbon in the air is considered a chemical change.
Select the correct answer from the choice given below to complete the sentence
The matter is added or removed during a ____________ change.
Give the reason why the following is considered as chemical changes.
A bright light is seen evolved when a strip of magnesium is heated.
