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प्रश्न
Give one example of change which occurs on mixing two substances, but cannot be reversed.
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उत्तर
Mixing of cement and water is an irreversible change.
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संबंधित प्रश्न
Very Short Answer Type Question:
Give two examples of reversible changes.
An example for reversible change is
Chemical reactions are example for
Circle the odd one.
Choose the odd one out. Give reason for your choice.
Inflating a balloon, popping a balloon, fading of wall paint, burning of kerosene
Periodical removal of one of the products of a reversible reaction increases the yield.
Water on ______ changes to ice and on ______ comes back to water.
Rusting of iron is a reversible change.
What are reversible changes?
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
