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प्रश्न
Select the chemical changes from the following list of changes
Breaking of glass
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उत्तर
Breaking of glass is a PHYSICAL change as no change in composition takes place, no new substance is formed.
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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
A burning candle shows both physical and chemical changes. Explain ?
State whether the following is physical or chemical changes.
Slaking of lime —
Tick the most appropriate answer.
Physical changes are
Fill in the blank.
There is no change in the _____________of the substance during a physical change.
Given reason:
Burning of paper is a chemical change.
______ is the substance that is dissolved in a solvent.
Paheli’s mother made a concentrated sugar syrup by dissolving sugar in hot water. On cooling, crystals of sugar got separated. This indicates a –
Give two examples for the following case:
Physical changes which are reversible
Mention some of the different conditions needed for chemical changes to occur.
