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प्रश्न
State whether the following is physical or chemical changes.
burning of sugar —
उत्तर
chemical change,
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संबंधित प्रश्न
Classify the following as chemical or physical change:
Rusting of almirah
Write true or false
Cutting of paper into pieces is a chemical change.
True or false
Dissolving of a solid in liquid is a physical change.
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 |
Write true or false
Deforestation is a man-made change.
Classify the following as physical or chemical change :
Condensation of steam
Which of the following are physical changes ?
- melting of iron metal
- rusting of iron metal
- bending of an iron rod
- drawing a wire of iron metal
Given reason:
Cutting of a cloth piece is a physical change, though it cannot be reversed.
Name the following.
The product obtained during a physical change when water converts from a liquid into a solid.
When ice melts to form water, change occurs in its
