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प्रश्न
Wood to sawdust:______:: Wood to Ash: Chemical change
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उत्तर
Wood to sawdust: Physical change. :: Wood to Ash: Chemical change
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संबंधित प्रश्न
Classify the following as chemical or physical change:
Burning of paper and wood
Write true or false for the statement.
Burning of paper and formation of curd are reversible changes
Make a list of different types of changes with example.
Define a chemical change. Give two examples of the above changes.
Give four difference between physical and chemical changes.
Change is the law of nature and occurs in our everyday life, at all times and in all places. Differentiate between the following change with a suitable example.
Desirable and undesirable change.
State what is meant by the term – interconversion of matter. Is interconversion of matter a physical change or a chemical change.
Name the following:
The final product of the physical change involved during the ‘melting of a piece of wax’.
Two drops of dilute sulphuric acid were added to 1 g of copper sulphate powder and then small amount of hot water was added to dissolve it (step I). On cooling, beautiful blue coloured crystals got separated (step II). Step I and Step II are:
Keeping a stone in sunlight for few hours is ______.
