The Amazing World of Solutes, Solvents, and Solutions — Practice Quiz
CBSE · Class 8 · Science
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Quick Quiz: The Amazing World of Solutes, Solvents, and Solutions
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When sugar is dissolved in water, which component is called the solute?
What happens when you heat a saturated solution?
The formula for calculating density is:
What is the SI unit of density?
Sample Questions
Which of the following are examples of solutions? (Select all correct answers)
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Salt water, Sugar in tea, Air
Solutions are uniform mixtures. Salt water, sugar in tea, and air are all uniform mixtures. Sand and water, oil and water are non-uniform mixtures.
When measuring liquid volume with a measuring cylinder, you should read from:
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Bottom of the meniscus
For colorless liquids like water, we read from the bottom of the meniscus (curved surface) to get an accurate measurement.
Which factors affect the solubility of gases in liquids? (Select all correct answers)
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Temperature, Pressure
Temperature and pressure are the main factors affecting gas solubility. Higher temperature decreases gas solubility, while higher pressure increases it.
Why does ice float on water?
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Ice is less dense than water
When water freezes to form ice, it expands and becomes less dense than liquid water. Objects less dense than water float on it.
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Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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