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प्रश्न
Classify the Following as a Physical Or a Chemical Change.
Making of a Sugar Solution
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उत्तर
Physical change
APPEARS IN
संबंधित प्रश्न
Write short answer.
Sublimation is classified as a physical change. Why ?
Classify the following changes as physical or chemical:-boiling
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 |
Fill in the blank with the correct word of the statement given below:
Sublimation involves a __________ change.
Name the following:
The final product of the physical change involved during the ‘melting of a piece of wax’.
Give a reason why – Addition of zinc nitrate to water is a physical change but, the addition of zinc to dilute nitric acid is a chemical change.
Select the chemical changes from the following list of changes
Respiration in mammals.
Select the chemical changes from the following list of changes
Glowing of an electric bulb.
Select the correct answer from the choice given below to complete the sentence
The energy required for completion of a physical change is ______________ when the change is reversed.
Keeping a stone in sunlight for few hours is ______.
