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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.
उत्तर
FeSO4 (Iron Sulphate)
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संबंधित प्रश्न
Write short answer.
What are man-made changes ?
Fill in the blank.
Growing of a seedling into a plant is _______ change.
State whether the following is physical or chemical changes.
lightning —
Write true or false
Rusting of iron is a chemical change.
Match the columns.
| Column A | Column B |
| 1. a change which cannot be easily reversed | a. man-made change |
| 2 a change that repeats itself at regular intervals | b. chemical chang |
| 3. a change that is made by humans | c. physical change |
| 4. a change in which the original substance cannot be obtained | d. periodic change |
| 5. a change where no new substance is formed | e. irreversible change |
| f . slow change |
State one instance where water undergoes a physical change and one in which it undergoes a chemical change.
State why addition of sodium chloride to water is considered a physical change, while addition of dilute sulphuric acid to zinc is considered a chemical change.
Fill in the blank with the correct word of the statement given below:
Sublimation involves a __________ change.
What type of change is colouring of a paper?
A physical change is generally____________.
