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प्रश्न
Write true or false
Deforestation is a man-made change.
विकल्प
True
False
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उत्तर
True
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संबंधित प्रश्न
Classify the following as chemical or physical change:
Rusting of almirah
Classify the following as chemical or physical change:
Boiling of water to form steam.
Explain the following giving an example.
Pure substance
Write short answer.
Name two reversible changes.
Tick (√) the correct alternative from the choice given for the following statement
Which one of the following is volatile in nature ?
Two chemical substances X and Y combine together to form a product P which contains both X and Y X + Y P
X and Y cannot be broken down into simpler substances by simple chemical reactions. Which of the following statements concerning X, Y and P are correct ?
- P is a compound
- X and Y are compounds
- X and Y are elements
- P has a fixed composition
Classify the Following as a Physical Or a Chemical Change.
Formation of Clouds
Differentiate between a physical change and a chemical change with reference to – Formation of products.
Adding sugar to milk is a physical change.
Explain the characteristics of physical change with examples.
