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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
विकल्प
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
Classify the following as chemical or physical change:
Passing of electric current through water, and water breaking down into hydrogen and oxygen gases.
Write short answer.
What are man-made changes ?
Classify the following as physical or chemical changes :
- Cooking of food
- Boiling of water
- Cutting of trees
- D0issolving salt in water
- Digestion of food
- Melting of ice
What is a physical change ? Give two examples of physical changes.
Classify the Following as a Physical Or a Chemical Change.
Formation of Clouds
State what is meant by the term – interconversion of matter. Is interconversion of matter a physical change or a chemical change.
Photosynthesis is a natural process by which green plants manufacture food in the presence of sunlight.
State the conclusions which can be drawn, to represent photosynthesis as a physical or a chemical change.
Select the chemical changes from the following list of changes
Change of seasons
______ is the substance that is dissolved in a solvent.
Water is the universal solvent. Why?
