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प्रश्न
Look at the figure which shows three situations.
Which of these shows a reversible change and why?
विकल्प
A burning candle
An extinguished candle
Melting wax
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उत्तर
Melting wax
Explanation:
Melted wax can be changed into its solid or viscous state on cooling. Therefore, it is a reversible change.
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संबंधित प्रश्न
Very Short Answer Type Question:
Give two examples of irreversible changes.
Circle the odd one.
Burning of match stick is a reversible change.
Change is the ______ of a substance from one form to another.
Changes which cannot be reversed are called ______.
Rusting of iron is a reversible change.
When ‘Touch me not’ plant is touched by us, ______ changes occur.
Touch me not plant: ______:: digestion of food: Irreversible change.
While lighting a candle, Paheli observed the following changes.
- Wax was melting
- Candle was burning
- Size of the candle was reducing
- Melted wax was getting solidified.
Of the above, the changes that can be reversed are
Can we reverse the following change? If yes, suggest the name of the method.
Curd into milk
