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प्रश्न
Differentiate between a physical change and a chemical change with reference to – Energy change taking place during the respective change.
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उत्तर
| Physical change | Chemical change |
| Generally, energy is neither absorbed nor released during the change. | Generally, energy is either absorbed or evolved during change. |
| Example: Melting of ice, melting of the wax. | Example: Change of milk into curd and burning of a candle. |
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संबंधित प्रश्न
Classify the following as chemical or physical change:
Rusting of almirah
Write true or false for the statement.
Burning of paper and formation of curd are reversible changes
State the differences between a physical change and a chemical change.
How do you say that the process of digestion is a chemical change ?
State whether the following is physical or chemical changes.
water cycle in nature —
Classify the following as a physical or a chemical change.
Manufacture of salt from sea water
Fill in the blank.
There is no change in the _____________of the substance during a physical change.
Change is the law of nature which occurs in everyday life.
State when a substance [i.e. matter] undergoes a kind of change.
You are given some candle wax. Can you make a candle doll from it? What kind of change is this?
State whether the following statement is true or false:
Stretching of rubber bands is not a physical change.
