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प्रश्न
Tick the most appropriate answer.
Rising and setting of the sun at a given place is a
पर्याय
periodic change
undesirable change
physical change
reversible change
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उत्तर
periodic change.
APPEARS IN
संबंधित प्रश्न
Tick the most appropriate answer
2. Melting of ice is a
- reversible change
- irreversible change
- chemical change
- none of these
Write true or false for the statement
A natural change can also be a desirable change
Make a list of different types of changes with example.
State whether the following is physical or chemical changes.
growing of a piglet into a pig —
State whether the following is physical or chemical change.
Digestion of food —
True or false
In a physical change no net energy change is involved.
True or false
Is the process of digestion a physical change?
Give the reason why the following is considered as chemical changes.
An iron nail kept open in the atmosphere rusts.
Name the following.
The product obtained during a physical change when water converts from a liquid into a solid.
Give an example to justify the statement that physical changes can be reversible as well as irreversible.
