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प्रश्न
Tick (√) the correct alternative from the choice given for the following statement.
An example of both physical and chemical change is
पर्याय
burning of candle
melting of ice
cooking of food
blowing of bulb
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उत्तर
burning of candle
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संबंधित प्रश्न
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
Fill in the blank.
Heat is .................... by a gas during the process of condensation.
Write true or false for the statement
Decomposition of leaves is a fast change.
Classify the following changes as physical or chemical:-boiling
State whether the following is physical or chemical change.
Digestion of food —
Tick (√) the correct alternative from the choice given for the following statement
Which one of the following is volatile in nature ?
What is a physical change ? Give two examples of physical changes.
Select the chemical changes from the following list of changes
Glowing of an electric bulb.
Assertion: Burning of wood log to charcoal is a physical change.
Reason: The products formed of burning a piece of wood can be easily converted back to wood log.
Ice, water and water vapour look different and display different ______ properties but they are ______ the same.
