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Questions and Answers
Which one of the following is an example of a colloid?
Which one of the following is an example of a colloid?
- Wine (correct)
- Pieces of paper in water
- Steel rod
- Air
Which one of the following is an example of a solution?
Which one of the following is an example of a solution?
- Air (correct)
- Mud in a pail
- Steel rod
- Pieces of paper in water
Which one of the following is an example of an emulsion?
Which one of the following is an example of an emulsion?
- Air
- Foam (correct)
- Steel rod
- Pieces of paper in water
Which one of the following is an example of a sol?
Which one of the following is an example of a sol?
Which one of the following is an example of a foam?
Which one of the following is an example of a foam?
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Study Notes
Types of Mixtures
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Colloid: A colloid is a stable mixture where tiny particles are dispersed throughout a continuous medium. An example of a colloid is milk, which contains fat globules suspended in water.
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Solution: A solution is a homogeneous mixture where solute particles are completely dissolved in a solvent. An example of a solution is saltwater, where salt is dissolved in water.
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Emulsion: An emulsion is a mixture of two immiscible liquids, where one liquid is dispersed in the other. An example of an emulsion is mayonnaise, which combines oil and vinegar with the help of an emulsifier.
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Sol: A sol is a colloid in a liquid state where solid particles are dispersed in a liquid medium. An example of a sol is paint, which has pigment particles suspended in a liquid binder.
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Foam: Foam is a collection of gas bubbles trapped in a liquid or solid. An example of a foam is shaving cream, which consists of air bubbles whipped into a cream base.
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