Final answer:
The correct answer to the question about particle size in mixtures is (c) Suspensions have the largest particles while solutions have the smallest.
Step-by-step explanation:
The question is concerned with the relative size of particles in different mixtures: solutions, colloidal dispersions, and suspensions. According to the descriptive information provided, solutions contain the smallest size particles, typically ions or small molecules, measuring approximately 0.1-2.0 nm. In contrast, colloidal dispersions comprise larger particles, usually in the size range of 2.0-500 nm. Finally, suspensions contain the largest size particles, exceeding 500 nm, and these particles are sufficiently large to settle out if the suspension is left undisturbed. The correct answer is thus (c) Suspensions/Largest, Solutions/Smallest.
The mixtures with the largest size particles are suspensions, while the mixtures with the smallest size particles are solutions. Solutions are composed of particles that are relatively small, around 0.1-2.0 nanometers in size. Examples of solutions include air, simple syrup, and seawater. On the other hand, suspensions have much larger particles, typically larger than 500 nanometers in size. Some examples of suspensions are paint, blood, and hot chocolate. Colloidal dispersions fall in between, with particles ranging from 2 to about 500 nanometers in size.