Advertisements
Advertisements
प्रश्न
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
Advertisements
उत्तर
- Wax melting is a reversible change.
- “The molten wax solidifies” is a reversible change.
These two changes can be reversible to get back to the original state. So the above two changes are reversible changes.
APPEARS IN
संबंधित प्रश्न
A stretched rubber band comes back to normal shape. It is an example for ________.
What is reversible change?
Formation of curd from milk is
Analogy
Dissolution of glucose : reversible change :: Digestion of food: ___________ change
Give examples to explain the difference between changes that can or cannot be reversed.
Changes which cannot be reversed are called ______.
Most of the physical changes are ______.
Can we reverse the following change? If yes, suggest the name of the method.
Curd into milk
Give one example of change occurs on mixing two substances, but can be reversed.
Choose the odd one out. Give reason for your choice.
