Which of the following substances should be added to acidic soil to neutralize it effectively?
Quicklime (calcium oxide)
Quicklime (calcium oxide) is an effective base used to neutralize acidic soil, raising its pH to more suitable levels for cultivation.
Vinegar is itself acidic, table salt does not neutralize acidity, and baking soda is a much weaker base less effective for large-scale soil treatment.
Hence, Quicklime (calcium oxide) is the correct answer.
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