Question detail
In a polymer, how are the atoms held together?
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. By ionic bonds between charged ions
- B. By covalent bonds formed from shared electron pairs
- C. By metallic bonds involving delocalised electrons
- D. By weak van der Waals forces
Answer
The correct option is By covalent bonds formed from shared electron pairs. This answer is correct because it matches the approved learning objective to represent covalent bonding in repeating units of polymers using lines and brackets where appropriate in the subtopic Covalent bonding.
Explanation
The correct option is By covalent bonds formed from shared electron pairs. By covalent bonds formed from shared electron pairs is correct because it directly supports the approved learning objective to represent covalent bonding in repeating units of polymers using lines and brackets where appropriate. This belongs to the subtopic Covalent bonding within Chemical bonds, ionic, covalent and metallic, 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 Covalent bonding.
Common mistake
Misunderstanding Polymer Representation
Students often represent covalent bonding in polymers using only lines without brackets, leading to incomplete structures.
Ensure to use lines for bonds and brackets to indicate repeating units in polymer structures.
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