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प्रश्न
Given reason:
Cutting of a cloth piece is a physical change, though it cannot be reversed.
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उत्तर
Because it does not change chemical composition of cloth and the change is only in the state, size, shape, colour, texture or the smell of some or all of the substances that undergo physical change.
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संबंधित प्रश्न
State whether the following is physical or chemical changes.
glowing of a bulb -
Fill in the blank
Changes that occur in nature are called ______
Match the columns.
| Column A | Column B |
| 1. a change which cannot be easily reversed | a. man-made change |
| 2 a change that repeats itself at regular intervals | b. chemical chang |
| 3. a change that is made by humans | c. physical change |
| 4. a change in which the original substance cannot be obtained | d. periodic change |
| 5. a change where no new substance is formed | e. irreversible change |
| f . slow change |
Classify the Following as a Physical Or a Chemical change.
Glowing of an Electric Bulb
Name the following.
The gaseous product of the chemical change which takes place during respiration in living organisms.
Stretching gold coin into a ring is a ______ change.
What kind of change is shown by tearing of paper?
A physical change is generally____________.
Give two examples for the following case:
Physical changes which are reversible
Cutting a log of wood into pieces is a chemical change.
