A-LevelChemistryGroup 29701/12 · Feb/Mar 2024 · Q201 Mark
Dolomite is a double carbonate, CaMg(CO₃)₂, and can be used instead of calcium carbonate for treating acidic soils. The three statements all refer to the agricultural use of these carbonates. 1 Dolomite and calcium carbonate are both less soluble than Ca(OH)₂. 2 One mole of dolomite has the same neutralising effect as one mole of calcium carbonate. 3 Dolomite and calcium carbonate both increase the pH of acidic soils. Which statements are correct?
A1 and 2 only
B1 and 3 only
C2 and 3 only
D1, 2 and 3
✓ Correct answer
B: 1 and 3 only
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