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What is the purpose of adding slaked lime to acidic soil?

Answer and explanation

Correct answer: To reduce soil acidity

The governing concept is neutralisation. Acidic soil has a pH below the suitable range, while slaked lime, calcium hydroxide, is a basic substance. Its hydroxide ions react with acidic components in the soil and reduce excess acidity, helping bring the pH closer to a level suitable for plant growth. Therefore option A is correct. Option B reverses the effect, while C and D describe unrelated changes that do not occur.

Related tags

Soil PhSlaked LimeNeutralisationAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And BehaviourScience

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