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प्रश्न
Under what soil conditions do you think a farmer would treat the soil of his fields with quicklime (calcium oxide), or slaked lime (calcium hydroxide) or chalk (calcium carbonate)?
लघु उत्तर
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उत्तर
Calcium oxide, calcium hydroxide, and calcium carbonate are all bases (pH > 7); hence, they must be used only when the soil is too acidic (pH < 7). They help neutralise soil acidity and bring the pH closer to 7.
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