Question detail
What is the primary reason for the increased strength of high carbon steel compared to low carbon 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 contains more iron.
- B. It has a higher carbon content.
- C. It is alloyed with other metals.
- D. It is processed at higher temperatures.
Answer
The correct option is It has a higher carbon content.. This answer is correct because it matches the approved learning objective to compare high carbon steel and low carbon steel in terms of strength, brittleness and shaping. (Chemistry only) in the subtopic Alloys as useful materials.
Explanation
The correct option is It has a higher carbon content.. It has a higher carbon content. is correct because it directly supports the approved learning objective to compare high carbon steel and low carbon steel in terms of strength, brittleness and shaping. (Chemistry only). 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
Misunderstanding Steel Properties
Students often confuse high carbon steel with low carbon steel, thinking they have the same strength and brittleness.
Remember that high carbon steel is stronger and more brittle, while low carbon steel is more malleable and easier to shape.
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