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प्रश्न
Name the following.
The salt obtained when a chemical change takes place on the addition of iron to dilute sulphuric acid.
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उत्तर
FeSO4 (Iron Sulphate)
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संबंधित प्रश्न
Explain why burning of wood and cutting it into small piece are considered as two different types of changes.
Melting of solid (wax) is a physical change.
Write short answer.
Name two reversible changes.
Write short answer.
Give an example of desirable change which can also be undesirable
Write short answer.
Sublimation is classified as a physical change. Why ?
Is burning a physical change or a chemical change? Why?
State whether the following is physical or chemical changes.
shaping a piece of glass —
Classify the following as a physical or a chemical change.
Butter getting rancid
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.
Classify the following changes as physical and chemical changes
A rough piece of wood is sanded and polished resulting in change in texture, Rusting of a iron nail, Painting the grill, Bending a paper clip, Pounding silver into thin plate, Rolling the chappathi dough into thin wire, Occurrence of day and night, eruption of volcano, burning of matchstick, dosa from the batter, blinking of eyelids, occurrence of a thunderstorm, rotation of the earth, formation of eclipses.
| Sr. No. | Physical changes | Chemical changes |
| 1. | ||
| 2. |
