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प्रश्न
Fill in the blank with the correct word of the statement given below:
Sublimation of iodine is an example of _________ change.
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उत्तर
Sublimation of iodine is an example of physical change.
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संबंधित प्रश्न
Fill in the blank
Chemical change occurs as a result of __________ between two substances.
Write true or false
Decomposition of leaves is a fast change.
Classify the following as a physical or a chemical change.
Melting of wax
Photosynthesis is a natural process by which green plants manufacture food in the presence of sunlight.
State the conclusions which can be drawn, to represent photosynthesis as a physical or a chemical change.
Give a reason why – Heating a platinum wire is a reversible change but, heating a magnesium wire is an irreversible change.
Select the chemical changes from the following list of changes
Glowing of an electric bulb.
Select the chemical changes from the following list of changes
The crystallisation of salt from its solution.
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.
Give the reason why the following is considered as chemical changes.
A bright light is seen evolved when a strip of magnesium is heated.
Give the reason why the following is considered as chemical changes.
A piece of magnesium strip is dropped into a beaker containing dilute hydrochloric acid.
