Why do farmers add slaked lime to acidic soil?
Answer and explanation
Correct answer: To reduce acidity
Acidic soil contains excess acidity, which can make conditions unsuitable for the healthy growth of some crops. Slaked lime is calcium hydroxide, Ca(OH)2, a basic substance. It reacts with acidic components in the soil and helps neutralise them, raising the soil pH toward a more suitable range. Therefore option A is correct. The other options describe changes that are unrelated to the agricultural use of lime.
Frequently asked questions
What is the correct answer to this question?
To reduce acidity
Why is this the correct answer?
Acidic soil contains excess acidity, which can make conditions unsuitable for the healthy growth of some crops. Slaked lime is calcium hydroxide, Ca(OH)2, a basic substance. It reacts with acidic components in the soil and helps neutralise them, raising the soil pH toward a more suitable range. Therefore option A is correct. The other options describe changes that are unrelated to the agricultural use of lime.
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.
