Unit 2: Structure 2: Models of Bonding and Structure
Topic 2.4: From Models to Materials Questions
Practice 4 exam-style questions for IB Chemistry Topic 2.4. Review the question stems below, then unlock the full Question Bank to access markschemes, model answers, and AI grading.
1Deduce1 mark
• Aimnova practice
An addition polymer has the repeating unit (–CH2–CH(CH3)–)n.
Deduce the structure of the alkene monomer from which it is made.
Deduce the structure of the alkene monomer from which it is made.
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Unlock Question2Explain3 marks
• Aimnova practice
Explain, in terms of how the valence electrons are involved, how ionic bonding differs from covalent bonding, and relate each to its position on the bonding triangle. [3]
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Unlock Question3Explain2 marks
• Aimnova practice
Brass is an alloy of copper and zinc.
Explain, in terms of structure, why brass is harder than pure copper. [2]
Explain, in terms of structure, why brass is harder than pure copper. [2]
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Unlock Question4Determine4 marks
• Aimnova practice
Caesium fluoride (CsF) has χ(Cs) = 0.8 and χ(F) = 4.0; tetrachloromethane (CCl4) has χ(C) = 2.6 and χ(Cl) = 3.2.
Using the bonding triangle, determine χ_avg and Δχ for each and deduce the dominant bonding type of each compound. [4]
Using the bonding triangle, determine χ_avg and Δχ for each and deduce the dominant bonding type of each compound. [4]
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