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प्रश्न
Circle the odd one.
पर्याय
Boiling
Burning
Cooking
Rusting of iron
MCQ
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उत्तर
Boiling
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संबंधित प्रश्न
Short Answer Type Question:
What is a physical change? Explain with example.
Chemical reactions are example for
Circle the odd one.
Magnet attracts iron needle.This is ______ change.
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
Give examples to explain the difference between changes that can or cannot be reversed.
Differences between
reversible and irreversible changes are:
Can we reverse the following change? If yes, suggest the name of the method.
Ice into water
Can we reverse the following change? If yes, suggest the name of the method.
Curd into milk
Which of the following changes cannot be reversed?
- Blowing of a balloon
- Folding paper to make a toy aeroplane
- Rolling a ball of dough to make roti
- Baking cake in an oven
- Drying a wet cloth
- Making biogas from cow dung
- Burning of a candle
