Question detail
Which of the following molecules can be represented using a dot and cross diagram?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Chemical bonds, ionic, covalent and metallic
Question
- A. Sodium chloride
- B. Water
- C. Iron
- D. Calcium oxide
Answer
Water
Explanation
Water (H2O) is a covalent molecule that can be represented using a dot and cross diagram to show the sharing of electrons.
Common mistake
Common Mistake in Dot and Cross Diagrams
Students often confuse the representation of shared electrons in dot and cross diagrams, incorrectly showing them as separate rather than shared between atoms.
Emphasize that in dot and cross diagrams, shared pairs of electrons should be represented clearly between the two atoms involved, indicating that they are being shared.
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