What can be added to improve acidic soil?
Answer and explanation
Correct answer: Slaked lime
The governing concept is neutralisation of excess soil acidity. Slaked lime, Ca(OH)₂, is a basic substance, so it reacts with and reduces acids present in acidic soil. Farmers commonly add suitable lime compounds to raise the soil pH toward a better range for plant growth. Vinegar, lemon juice, and hydrochloric acid are acidic and would increase rather than correct the acidity. Therefore slaked lime is the most suitable answer.
Frequently asked questions
What is the correct answer to this question?
Slaked lime
Why is this the correct answer?
The governing concept is neutralisation of excess soil acidity. Slaked lime, Ca(OH)₂, is a basic substance, so it reacts with and reduces acids present in acidic soil. Farmers commonly add suitable lime compounds to raise the soil pH toward a better range for plant growth. Vinegar, lemon juice, and hydrochloric acid are acidic and would increase rather than correct the acidity. Therefore slaked lime is the most suitable answer.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Chemical Substances – Nature and Behaviour. Topic: Acids, Bases, and Salts.
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