Chemistry
Grade-10
Easy
Question
Which of the following is an example of a physical change?
- Lighting a match
- Separating dyes by chromatography
- Water separating to Oxygen
- Baking soda reacting with vinegar
Hint:
In a physical change, there is a change in color, shape, size, or we can say the change in external appearance only.
The correct answer is: Separating dyes by chromatography
Separating dyes by chromatography is an example of a physical change.
- The components of the mixture are physically combined they can be separated by physical means.
- Lighting a match, Baking soda reacting with vinegar and Water separating to Oxygen undergo chemical reactions and include certain chemical changes. Thus are chemical changes.
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- Magma is extremely hot liquid and semi-liquid rock located under Earth's surface.
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