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प्रश्न
Physical Change: Boiling::Chemical Change: ______.
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उत्तर
Physical Change: Boiling::Chemical Change: Burning
APPEARS IN
संबंधित प्रश्न
Fill in the blank.
Changes that occur in nature are called ........................
True or false
Change of seasons is a non-periodic 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 |
Which of the following are physical changes and which are chemical changes?
Burning of candle wax, Melting of candle wax, Mixing of iron filings and sand, Burning of wood, Breaking a piece of chalk, Burning a piece of paper, Cutting a piece of paper.
Give four difference between physical and chemical changes.
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:
Germination of seeds is considered a __________ change.
Give a reason why rusting of iron is a chemical change but, the magnetization of iron is a physical change.
Select the correct answer from the choice given below to complete the sentence
The dissolution of lead nitrate in water is deemed as a _________ change.
When a woolen yarn is knitted to get a sweater, the change can be classified as ____________.
