O-LevelChemistryRates of Reaction5070/11 · Oct/Nov 2021 · Q211 Mark
Elements X and Y react together in a reversible reaction to form XY2. X + 2Y ⇌ XY2 1.0 mol of X is mixed with 1.0 mol of Y and the mixture is left to react until an equilibrium position is reached. Which statements about this reaction are correct? 1 After the equilibrium position has been reached, the reaction stops. 2 At equilibrium there is more than 0.5 mol of X present. 3 At equilibrium there is less than 1.0 mol of XY2 present.
A1, 2 and 3
B2 only
C3 only
D2 and 3 only
✓ Correct answer
D: 2 and 3 only
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