Question detail
Why is diamond considered very hard?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Structure and bonding of carbon
Question
- A. It has weak intermolecular forces
- B. It has strong covalent bonds throughout its structure
- C. It contains delocalised electrons
- D. It has a layered structure
Answer
The correct option is It has strong covalent bonds throughout its structure. This answer is correct because it matches the approved learning objective to explain that each carbon atom in diamond forms four covalent bonds in the subtopic Diamond.
Explanation
The correct option is It has strong covalent bonds throughout its structure. It has strong covalent bonds throughout its structure is correct because it directly supports the approved learning objective to explain that each carbon atom in diamond forms four covalent bonds. This belongs to the subtopic Diamond within Structure and bonding of carbon, 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 Diamond.
Common mistake
Misunderstanding Carbon Bonds in Diamond
Students often state that each carbon atom in diamond forms three covalent bonds instead of four.
Remember that in diamond, each carbon atom forms four covalent bonds, creating a strong and rigid structure.
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