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If soil has very low pH and too much lime is added, what problem may occur?

Answer and explanation

Correct answer: The soil may become too basic

A very low pH indicates that the soil is acidic. Lime, commonly containing calcium carbonate or calcium oxide, is basic and is added to neutralise excess acidity. However, the amount must be controlled. If too much lime is applied, the neutralisation can go beyond the suitable range and raise the pH excessively, making the soil alkaline. Therefore option A is correct; the other choices do not describe this reaction.

Related tags

Soil PhLimeNeutralisationAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And BehaviourScience

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