Question 1
Question detail
Which of the following is a characteristic of stainless steel?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Using materials
Question
- A. It is made of iron and carbon only
- B. It contains chromium and nickel
- C. It is a pure metal
- D. It is less resistant to corrosion than regular steel
Answer
The correct option is It contains chromium and nickel. This answer is correct because it matches the approved learning objective to interpret alloy composition and evaluate uses of alloys from given information. (Chemistry only; MS 1a, 1c) in the subtopic Alloys as useful materials.
Explanation
The correct option is It contains chromium and nickel. It contains chromium and nickel is correct because it directly supports the approved learning objective to interpret alloy composition and evaluate uses of alloys from given information. (Chemistry only; MS 1a, 1c). This belongs to the subtopic Alloys as useful materials within Using materials, 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 Alloys as useful materials.
Common mistake
Misinterpreting Alloy Composition
Students often confuse the composition of an alloy with that of a pure metal, failing to recognize that alloys contain multiple elements.
To fix this, students should focus on understanding that alloys are mixtures of different metals or metals with non-metals, and practice identifying the components of various alloys.
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