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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
Fill in the blank
change in which the substance can be brought back to its original state is called a ............... change.
Write true or false for the statement
A natural change can also be a desirable change
Fill in the blank
Revolution of the earth around the sun is a ________ change.
State whether the following is physical or chemical changes.
glowing of a bulb -
What are man-made changes ?
Name the following:
The type of change physical or chemical involved – ‘when a substance undergoes a change in state, colour or size’.
Select the chemical changes from the following list of changes
The crystallisation of salt from its solution.
Give the reason why the following is considered as chemical changes.
Sulphur when burnt in air evolves a gaseous acidic product.
Physical Change: Boiling::Chemical Change: ______.
Mention some of the different conditions needed for chemical changes to occur.
