A-LevelChemistryChemical periodicity9701/12 · Feb/Mar 2018 · Q141 Mark
X, Y and Z are three elements in the third period. • X reacts with chlorine to give a liquid product. • Y reacts with chlorine to give a solid product that dissolves in water to give a solution of pH 7. • Z reacts with chlorine to give a solid product that dissolves in water to give a solution of pH 6. Which elements are good conductors of electricity?
AX and Y
BY and Z
CY only
DZ only
✓ Correct answer
B: Y and Z
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