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Question
Select the correct answer from the choice given below to complete the sentence
The matter is added or removed during a ____________ change.
Options
chemical
physical
Solution
The matter is added or removed during a chemical change.
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RELATED QUESTIONS
Tick the most appropriate answer
2. Melting of ice is a
- reversible change
- irreversible change
- chemical change
- none of these
Fill in the blank.
Heat is .................... by a gas during the process of condensation.
Fill in the blank.
Growing of a seedling into a plant is _______ change.
True or false
Change of seasons is a non-periodic change.
A physical change is temporary. Explain.
What is a physical change ? Give two examples of physical changes.
Name the following:
The type of change physical or chemical involved – ‘when a substance undergoes a change in state, colour or size’.
Match the following
| Sr. No. | A | B | C |
| 1. | Melting | Change of state from liquid to solid | Ticking of clock |
| 2. | Condensation | Change of state from liquid to gas | Formation of ice cube |
| 3. | Evaporation | Change of state from solid to liquid | Collecting flowers |
| 4. | Freezing | Change of state from gas to liquid | Ice cube to water |
| 5. | Periodic change | Occurs at irregular time intervals | Water to steam |
| 6. | Non-periodic change | Occurs at regular time intervals | Steam to water drops |
Assertion: The explosion of fire cracker is a physical change.
Reason: A physical change is a reversible change.
Sublimation of Iodine is a ______.
