Advertisements
Advertisements
प्रश्न
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
Advertisements
उत्तर
The following changes are irreversible:
d. Baking cake in an oven.
f. Making biogas from cow dung.
g. Burning of a candle.
APPEARS IN
संबंधित प्रश्न
Very Short Answer Type Question:
Give two examples of reversible changes.
Very Short Answer Type Question:
Give two examples of irreversible changes.
Chemical reactions are example for
Choose the odd one out. Give reason for your choice.
Differentiate reversible and irreversible reactions.
Changes which cannot be reversed are called ______.
The burning of the paper is an irreversible change.
Analogy:
Irreversible change: Making idly front batter.
Reversible change: ______.
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?
Give one example of change which occurs on mixing two substances, but cannot be reversed.
