Question detail

What is a key property of nanoparticles that differs from bulk materials?

Try the question, check the answer, then read the explanation to understand the curriculum point.

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At a glance

MCQ

Type

practice

Style

Topic

Bulk and surface properties of matter including nanoparticles (chemistry only)

Question

A. They have a lower surface area to volume ratio.
B. They have a higher surface area to volume ratio.
C. They are always more reactive than bulk materials.
D. They have the same properties as bulk materials.

Answer

The correct option is They have a higher surface area to volume ratio.. This answer is correct because it matches the approved learning objective to (chemistry only) Compare nanoparticles with fine particles and coarse particles using given size information in the subtopic Sizes of particles and their properties.

Explanation

The correct option is They have a higher surface area to volume ratio.. They have a higher surface area to volume ratio. is correct because it directly supports the approved learning objective to (chemistry only) Compare nanoparticles with fine particles and coarse particles using given size information. This belongs to the subtopic Sizes of particles and their properties within Bulk and surface properties of matter including nanoparticles (chemistry only), so the explanation must stay tied to that curriculum context. The other options are incorrect because they either do not answer this learning objective, use a vague statement, or move away from Sizes of particles and their properties.

Common mistake

Sizes of particles and their properties correction for Confusing Parti

Students often confuse the sizes of nanoparticles with fine and coarse particles, leading to incorrect comparisons This error matters in Sizes of particles and their properties because it drifts away from the objective: (chemistry only) Compare nanoparticles with fine particles and coarse particles using given size information.

Correct it by naming the exact chemistry idea, using precise bonding or structure vocabulary, and linking the answer back to Sizes of particles and their properties. For this objective, students should (chemistry only) compare nanoparticles with fine particles and coarse particles using given size information.

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