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Why is slaked lime added to acidic soil?

Answer and explanation

Correct answer: To reduce soil acidity

Acidic soil has a pH lower than the range preferred by many crops. Slaked lime, calcium hydroxide [Ca(OH)₂], is a basic substance. It reacts with excess acids in the soil and neutralises them, thereby raising the pH toward a more suitable value. Thus option A is correct. Adding it does not increase acidity, convert soil into gas, or produce sugar; the effect is an acid-base neutralisation.

Related tags

Soil PhSlaked LimeNeutralisationBaseAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And Behaviour

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