Question 1
Question detail
Why can nanoparticles have different properties compared to the same material in bulk?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Bulk and surface properties of matter including nanoparticles (chemistry only)
Question
- A. They have a different chemical composition
- B. They are larger in size
- C. They have a higher surface area to volume ratio
- D. They are made of different elements
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) Define nanoscience as the study of structures from 1 nm to 100 nm 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) Define nanoscience as the study of structures from 1 nm to 100 nm. 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
Misunderstanding Nanoscience Definition
Students often define nanoscience as the study of any small particles, not specifically those from 1 nm to 100 nm.
Emphasize that nanoscience specifically focuses on structures within the size range of 1 nm to 100 nm.
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