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A soil has pH 4.5. Which treatment is more scientific?

Answer and explanation

Correct answer: Add a suitable amount of slaked lime

A pH of 4.5 indicates that the soil is distinctly acidic. Slaked lime, calcium hydroxide, is a basic substance that can neutralise some of the excess acidity and raise the soil pH when applied in a suitable, tested amount. Therefore option A is correct. Vinegar, lemon juice, and dilute acid would add acidity and make the soil condition worse rather than correct it.

Related tags

Soil PhSlaked LimeAcidic SoilAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And BehaviourChemical Substances Nature And BehaviourScience

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