A student added lime to acidic soil to improve the growth of plants. What is the main purpose of adding lime?
Answer and explanation
Correct answer: मिट्टी की अम्लता को उदासीन करना
The governing concept is neutralisation. Lime materials such as calcium oxide or calcium hydroxide are basic, so they react with and reduce excess acidity in soil. This moves the soil pH toward a range more suitable for plant growth; therefore option A is correct. Making the soil more acidic is the opposite of the intended treatment, while removing all moisture or permanently raising temperature is not the chemical purpose of lime.
Frequently asked questions
What is the correct answer to this question?
मिट्टी की अम्लता को उदासीन करना
Why is this the correct answer?
The governing concept is neutralisation. Lime materials such as calcium oxide or calcium hydroxide are basic, so they react with and reduce excess acidity in soil. This moves the soil pH toward a range more suitable for plant growth; therefore option A is correct. Making the soil more acidic is the opposite of the intended treatment, while removing all moisture or permanently raising temperature is not the chemical purpose 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.
