A-LevelChemistryChemical bondingFeb/Mar 2022Paper 1 Q191 Mark
The table shows the melting points of SiO₂ and P₄O₆. [Figure 19.1] Which statement explains the difference between the melting points of SiO₂ and P₄O₆?
AThe bonding of the oxides changes from ionic to covalent.
BThe metallic character of the elements decreases across Period 3.
CThe oxidation number of the element increases from Si to P.
DThe structure changes from giant molecular to simple molecular.
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The correct answer is D. This question tests the candidate's understanding of chemical bonding within the Chemistrysyllabus. The examiner's mark scheme requires...
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