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प्रश्न
Stretching gold coin into a ring is a ______ change.
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उत्तर
Stretching gold coin into a ring is a
physical change.
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संबंधित प्रश्न
Classify the following changes as physical or chemical:-boiling
Tick (√) the correct alternative from the choice given for the following statement
Which one of the following is volatile in nature ?
Write true or false
Dissolving of solute in a solvent and rusting of iron are both physical changes.
What will you take into account while identifying the following?
A chemical change in a substance.
Name the following:
The type of change physical or chemical involved – ‘when a substance undergoes a change in state, colour or size’.
Potassium chloride is added to water and stirred. A salt solution is obtained, which is then boiled, leaving behind a residue.
- Is the above change physical or chemical?
- Name the residue which remains behind after the salt solution is boiled.
- Is the change reversible or not reversible?
- Are the composition and properties of the original substance altered?
- Give a reason why the above experimentation would not be possible if calcium carbonate was taken in place of potassium chloride.
Select the chemical changes from the following list of changes
Change of seasons
State which of the following 1 to 5 pertain to – A: Physical Change B: Chemical change :
- Sublimation.
- Fermentation.
- Liquefaction or condensation.
- Magnetization.
- Respiration.
Name the following.
The product obtained during a physical change when water converts from a liquid into a solid.
Which of the following is not a physical change?
