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प्रश्न
Tick (√) the correct alternative from the choice given for the following statement
When sugar is heated, its colour changes into
पर्याय
red
brown
black
grey
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उत्तर
black
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संबंधित प्रश्न
Tick (√) the correct alternative from the choice given for the following statement
Burning is a
Melting of solid (wax) is a physical change.
What role does energy play in initiating a chemical change ?
Distinguish between the following.
Natural change and man-made change
Under which different types can the following changes be classified?
Occurrence of an earthquake.
Under which different types can the following changes be classified?
Revolution of the earth around the sun.
Give reason.
A dry handkerchief gets wet at once on dipping in water, but it takes longer for a wet handkerchief to dry.
Explain in brief the involvement of energy in physical and chemical changes.
Picture based question
Observe the picture and list down the changes that are accompanied in the picture.
- ______.
- ______.
- ______.
______ is the process in which something becomes different from what it was earlier.
