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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
Write short answer.
What are man-made changes ?
State whether the following is physical or chemical changes.
mixing oil with water —
Tick (√) the correct alternative from the choice given for the following statement
Which one of the following is volatile in nature ?
Classify the Following as a Physical Or a Chemical Change.
Making of a Sugar Solution
Change is the law of nature which occurs in everyday life.
State when a substance [i.e. matter] undergoes a kind of change.
Select the chemical changes from the following list of changes
Respiration in mammals.
Give the reason why the following is considered as chemical changes.
Copper carbonate on heat gives copper oxide and carbon dioxide.
Give the reason why the following is considered as chemical changes.
Sulphur when burnt in air evolves a gaseous acidic product.
What type of energy changes is associated when ice melts?
Distinguish physical and chemical changes.
