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प्रश्न
State whether the following is physical or chemical changes.
lightning —
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उत्तर
chemical change,
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संबंधित प्रश्न
State whether the following statement is true or false. In case a statement is false, write the corrected statement.
Cutting a log of wood into pieces is a chemical change.
Fill in the blank.
Changes that occur in nature are called ........................
Match the columns
| column A | coulmn B |
| 1. A change which cannot be easily reversed | a. man-made change |
| 2.A change that repeats itself at regular intervals | b. chemical change |
| 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 formade | e. irreversible change |
| f. slow change |
How do you say that the process of digestion is a chemical change ?
Fill in the blank
Changes that occur in nature are called ______
Name the following:
The type of change physical or chemical involved – ‘when a substance undergoes a change in state, colour or size’.
When a woolen yarn is knitted to get a sweater, the change can be classified as ____________.
______ is the Universal Solvent.
What kind of change is shown by tearing of paper?
A physical change is generally____________.
