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An agricultural soil has become too acidic. Which substance is useful to improve it?

Answer and explanation

Correct answer: Slaked lime

Very acidic soil can interfere with nutrient availability and may harm plant roots. Slaked lime, calcium hydroxide, is a basic substance that reacts with and neutralises excess acidity in the soil. Hence option A is correct. Vinegar, lemon juice, and acid rainwater are acidic, so adding them would increase rather than correct the soil’s acidity.

Related tags

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

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