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प्रश्न
State whether the following is physical or chemical changes.
glowing of a bulb -
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उत्तर
physical change,
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संबंधित प्रश्न
Classify the following as chemical or physical change:
Rusting of almirah
Tick the most appropriate answer
2. Melting of ice is a
- reversible change
- irreversible change
- chemical change
- none of these
Sublimation is classified as a physical change. Why ?
Give a reason why – Addition of zinc nitrate to water is a physical change but, the addition of zinc to dilute nitric acid is a chemical change.
Select the chemical changes from the following list of changes
Boiling of milk.
You are given some candle wax. Can you make a candle doll from it? What kind of change is this?
What type of energy changes is associated when ice melts?
Assertion: The explosion of fire cracker is a physical change.
Reason: A physical change is a reversible change.
Natural changes which take place in nature on their own, are beyond the control of human being.
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.
