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A-LevelChemistryChemical bonding9701/12 · Feb/Mar 2024 · Q61 Mark

Aluminium chloride exists as Al₂Cl₆ molecules at room temperature. When heated to a high temperature, AlCl₃ molecules are formed. What are the arrangements of the bonding pairs of electrons around the aluminium atom in the two forms of aluminium chloride?

AAlCl₃: planar, Al₂Cl₆: planar
BAlCl₃: planar, Al₂Cl₆: tetrahedral
CAlCl₃: tetrahedral, Al₂Cl₆: tetrahedral
DAlCl₃: tetrahedral, Al₂Cl₆: octahedral

✓ Correct answer

B: AlCl₃: planar, Al₂Cl₆: tetrahedral

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About this question

Topic
Chemical bonding, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source
A-Level Chemistry, Feb/Mar 2024 Paper 1 Variant 2, question 6.

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