A-LevelChemistryChemical bonding9701/12 · May/June 2016 · Q321 Mark

Three elements, X, Y and Z, have electronic configurations as shown. X 2,6 Y 2,8,1 Z 2,8,7 Which formulae represent compounds that conduct electricity in the liquid state? 1 YZ 2 Y₂X 3 Z₂X

A1, 2 and 3 are correct

B1 and 2 only are correct

C2 and 3 only are correct

D1 only is correct

✓ Correct answer

B: 1 and 2 only are correct

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Topic: Chemical bonding, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source: A-Level Chemistry, May/June 2016 Paper 1 Variant 2, question 32.

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