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Colloids are described as exhibiting properties intermediate between those of:
ASolids and pure gases
BAcids and strong bases
CMetals and pure salts
DSuspensions and solutions
Answer & Solution
Correct answer: D. Suspensions and solutions
1. Mixtures form a spectrum by particle size.
2. Another class of mixtures is called colloids, or colloidal dispersions.
3. Colloids exhibit properties intermediate between those of suspensions and solutions.
4. Their particles are larger than dissolved ions but small enough to stay dispersed.
5. That intermediate size is what gives colloids their distinctive behaviour.
_Source: OpenStax Chemistry 2e (CC BY 4.0), Ch 11 'Solutions and Colloids', sections 11.1-11.5_
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