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प्रश्न
Wood to sawdust:______:: Wood to Ash: Chemical change
उत्तर
Wood to sawdust: Physical change. :: Wood to Ash: Chemical change
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संबंधित प्रश्न
Tick the most appropriate answer
2. Melting of ice is a
- reversible change
- irreversible change
- chemical change
- none of these
Fill in the blank.
Heat is .................... by a gas during the process of condensation.
Define physical change. Give two examples for the above changes.
State whether the following is physical or chemical changes.
water cycle in nature —
State whether the following is physical or chemical changes.
mixing oil with water —
Give the reason why the following is considered as chemical changes.
An iron nail kept open in the atmosphere rusts.
Distinguish physical and chemical changes.
Ice, water and water vapour look different and display different ______ properties but they are ______ the same.
What kind of change is shown by tearing off paper?
The change of state of a substance from solid to liquid and liquid to gas is ______.
