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प्रश्न
Fill in the blank with the appropriate word of the statement given below:
If a change is permanent and irreversible it is considered a _________ change.
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उत्तर
If a change is permanent and irreversible it is considered a chemical change.
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संबंधित प्रश्न
When a candle burns, both physical and chemical changes take place. Identify these changes. Give another example of a familiar process in which both the chemical and physical changes take place.
State whether the following is physical or chemical changes.
growing of a piglet into a pig —
Fill in the blank
Changes that occur in nature are called ______
Write true or false
Deforestation is a man-made change.
Write true or false
Decomposition of leaves is a fast change.
The rusting of an iron object is called :
What will you take into account while identifying the following?
A chemical change in a substance.
Change is the law of nature which occurs in everyday life.
State when a substance [i.e. matter] undergoes a kind of change.
Name the following.
The salt obtained when a chemical change takes place on the addition of iron to dilute sulphuric acid.
Explain the characteristics of physical change with examples.
