O-LevelChemistryAcids, Bases & Salts5070/11 · May/June 2020 · Q21 Mark
Copper(II) sulfate is prepared by reacting excess copper(II) carbonate with dilute sulfuric acid. CuCO3(s) + H2SO4(aq) → CuSO4(aq) + CO2(g) + H2O(l) Which two pieces of apparatus are needed to obtain copper(II) sulfate crystals by this reaction? 1 thermometer 2 evaporating basin 3 filter funnel 4 gas syringe
A1 and 2
B1 and 4
C2 and 3
D3 and 4
✓ Correct answer
C: 2 and 3
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