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प्रश्न
Formation of curd from milk is
विकल्प
a reversible change
a fast change
an irreversible change
an undesirable change
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उत्तर
An irreversible change
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संबंधित प्रश्न
Long Answer Type Question:
Explain how a metal rim slightly smaller than a wooden wheel can be fixed on it.
Circle the odd one.
When a candle is lit the following changes are observed.
- Wax melts.
- Candle keeps burning.
- The size of the candle decreases.
- The molten wax solidifies
- Which of the changes can be reversed? Justify your answer
Water on ______ changes to ice and on ______ comes back to water.
Evaporation of water is a reversible change.
Name the two types of changes.
A piece of iron is heated till it becomes red-hot. it then becomes soft and is beaten to a desired shape. What kind of changes are observed in this process-reversible or irreversible?
Find the odd one out and give reason for your choice.
Choose the odd one out. Give a reason for your choice.
Choose the odd one out. Give reason for your choice.
