Which statement best describes a true solution?

Its particles settle on standing

Its particles can be seen easily

Class 9 Chemistry · Chapter 1 · Test 3

Solutions, Colloids and Suspensions

25 MCQs • Practice the properties, differences, and examples of true solutions, colloids, and suspensions, along with saturated and unsaturated solutions.

MCQs

25 questions · 25 min · 25 marks

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Sample questions

The first 5 of 25. Try each one, then tap to see the answer.

Question 1
Which of the following is an example of a true solution?
- ASalt in water
- BChalk in water
- CSand in water
- DOil in water
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Answer: A
Salt dissolves uniformly in water to form a true solution.
Question 2
What is the particle size in a true solution?
- ALess than 1 nm
- B1–1000 nm
- CMore than 1000 nm
- DVisible to the naked eye
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Answer: A
True solutions contain very small particles, generally smaller than 1 nm.
Question 3
Which statement best describes a true solution?
- AIt is always cloudy
- BIts particles settle on standing
- CIt is homogeneous
- DIts particles can be seen easily
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Answer: C
A true solution has a uniform composition throughout.
Question 4
Which of the following is an example of a colloid?
- ASalt solution
- BSugar solution
- CStarch solution
- DDistilled water
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Answer: C
Starch dispersed in water forms a colloidal mixture.
Question 5
What is the approximate particle-size range of colloids?
- ABelow 1 nm
- B1–1000 nm
- CAbove 1000 nm
- DExactly 1 nm
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Answer: B
Colloidal particles are generally between 1 and 1000 nm in size.

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