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प्रश्न
Name the following.
The product of the chemical change in keeping a polished iron nail exposed to the atmosphere.
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उत्तर
Iron III oxide [Fe2O3x H20]
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संबंधित प्रश्न
State whether the following is physical or chemical changes.
water cycle in nature —
Write true or false
Burning of paper and formation of curd are reversible changes.
Write true or false
Dissolving of solute in a solvent and rusting of iron are both physical changes.
Classify the following changes as physical or chemical.
Classify the following as physical or chemical change :
Condensation of steam
What will you take into account while identifying the following?
A physical change in a substance.
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.
Give a reason why
Freezing of water is a reversible change while burning of a candle – an irreversible change.
Select the chemical changes from the following list of changes
Change of seasons
What is the difference between dissolution of sugar and burning of sugar ?
