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प्रश्न
Physical Change: Boiling::Chemical Change: ______.
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उत्तर
Physical Change: Boiling::Chemical Change: Burning
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संबंधित प्रश्न
Fill in the blank.
Changes that occur in nature are called ........................
State the various conditions that favour the process of evaporation.
State whether the following is physical or chemical changes.
shaping a piece of glass —
State whether the following is physical or chemical changes.
photosynthesis —
Define a chemical change. Give two examples of the above changes.
State the observations seen, when milk in a dish is kept aside for a few hours or more. Is the change which occurs – a physical change or a chemical change. Give reasons.
Give reasons why – separation of mixtures e.g. iron from a mixture of iron and sulphur is a physical change, but heating a mixture of iron and sulphur is considered a chemical change.
Fill in the blanks with the appropriate words of the statement given below:
Heating a piece of iron is considered a __________ change while heating a piece of coal [carbon] is considered a ___________ change.
Select the chemical changes from the following list of changes
Rotting of eggs.
The change of state of a substance from solid to liquid and liquid to gas is ______.
