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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
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
Melting of solid (wax) is a physical change.
Classify the following changes as physical or chemical: curdling of milk
A burning candle shows both physical and chemical changes. Explain ?
State whether the following is physical or chemical changes.
heating a mixture of iron filings and sulphur—
True or false
Is the process of digestion a physical change?
Which of the following are chemical changes ?
- decaying of wood
- burning of wood
- sawing of wood
- hammering of nail into wood
Select the chemical changes from the following list of changes
Rotting of eggs.
Mention some of the different conditions needed for chemical changes to occur.
