If soil is too basic, which method can help improve it?
Answer and explanation
Correct answer: Adding organic matter
The governing concept is neutralisation and soil pH management. Highly basic soil has a pH above 7, so adding more alkaline substances such as lime or sodium hydroxide would make the problem worse. Organic matter, such as compost or manure, decomposes gradually and can produce mildly acidic substances that help reduce excessive alkalinity and improve soil structure. Therefore, option B is correct; soap is not a suitable soil amendment.
Frequently asked questions
What is the correct answer to this question?
Adding organic matter
Why is this the correct answer?
The governing concept is neutralisation and soil pH management. Highly basic soil has a pH above 7, so adding more alkaline substances such as lime or sodium hydroxide would make the problem worse. Organic matter, such as compost or manure, decomposes gradually and can produce mildly acidic substances that help reduce excessive alkalinity and improve soil structure. Therefore, option B is correct; soap is not a suitable soil amendment.
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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