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प्रश्न
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.
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उत्तर
Heating a piece of iron is considered a physical change while heating a piece of coal [carbon] is considered a chemical change.
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संबंधित प्रश्न
Classify the following as chemical or physical change:
Rusting of almirah
Which of the following are chemical changes?
- Growth of a plant
- Rusting of iron
- Mixing of iron fillings and sand
- Cooking of food
- Digestion of food
- Freezing of water
- Burning of candle
Dissolving salt in water is a reversible change.
A physical change is temporary. Explain.
Tick (√) the correct alternative from the choice given for the following statement
A pop sound is heard when a lighted match stick is brought near the mouth of a jar. This indicates the release of gas.
Name two reversible changes.
The rusting of an iron object is called :
Classify the following as a physical or a chemical change.
Burning of coal
Give four difference between physical and chemical changes.
Select the chemical changes from the following list of changes
Boiling of milk.
