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प्रश्न
Fill in the blank.
There is no change in the _____________of the substance during a physical change.
उत्तर
There is no change in the composition of the substance during a physical change.
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संबंधित प्रश्न
Classify the following as chemical or physical change:
Rusting of almirah
Fill in the blank.
Changes that occur in nature are called ........................
Write true or false for the statement.
Deforestation is a man-made change
What are reversible and irreversible changes ? Give one example for each.
Classify the following as a physical or a chemical change.
Manufacture of salt from sea water
Classify the following as a physical or a chemical change.
Burning of coal
Classify the Following as a Physical Or a Chemical Change.
Making of a Sugar Solution
Select the correct answer from the choice given below to complete the sentence
The energy required for completion of a physical change is ______________ when the change is reversed.
Grinding of wheat grain changes its size. It is a ____________ change.
Mention some of the different conditions needed for chemical changes to occur.
