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प्रश्न
Changes in which only ______ properties of a substance change are called physical changes.
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उत्तर
Changes in which only physical properties of a substance change are called physical changes.
Explanation:
Physical changes alter only the physical properties, not the chemical composition, of a substance.
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संबंधित प्रश्न
State four differences between physical and chemical changes.
State whether the following is physical or chemical changes.
glowing of a bulb -
State whether the following is physical or chemical changes.
heating a mixture of iron filings and sulphur—
Give two examples of periodic changes.
Give a reason why
Change of seasons is a periodic change while the change of weather is a non-periodic change.
Give a reason why rusting of iron is a chemical change but, the magnetization of iron is a physical change.
Select the chemical changes from the following list of changes
Drying of a fruit
Select the chemical changes from the following list of changes
Breaking of glass
Assertion: Burning of wood log to charcoal is a physical change.
Reason: The products formed of burning a piece of wood can be easily converted back to wood log.
Fill in the blanks in the following statements using the words given in the box.
| rusted, colourful, substance, chemical, physical, reversible, iron oxide, object |
- Making sugar solution is a ______ change.
- A physical change is generally ______.
- Grinding of wheat grain changes its size. It is a ______ change.
- Iron benches kept in lawns and gardens get ______. It is a ______ change because a new ______ is formed.
