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प्रश्न
A farmer was unhappy because of his low crop yield. He discussed the problem with an agricultural scientist and realised that the soil of his field was either too acidic or too basic. What remedy would you suggest the farmer to neutralise the soil?
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उत्तर
If the soil is too acidic it should be treated with bases such as quick lime (calcium oxide) or slaked lime (calcium hydroxide). If the soil is too basic, organic matter is added to it. Organic matter releases acids that neutralise the basic nature of the soil.
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संबंधित प्रश्न
Name the source from which litmus solution is obtained. What is the use of this solution?
How is the neutralisation of a carbonate with an acid different from the neutralisation of an oxide or a hydroxide?
Classify the following solutions as acids, bases or salts.
Ammonium hydroxide, barium chloride, sodium chloride, sodium hydroxide, H2SO4 and HNO3
If iron reacts with dilute sulphuric acid, what will be the products?
In acidic solutions blue litmus changes into ______ colour.
Which of the following statements is true for acids?
The correct way of making a solution of acid in water is to ______.
Match the substances in Column I with those in Column II.
| Column 1 | Column II | ||
| (a) | Tartaric acid | (i) | soap |
| (b) | Calcium hydroxide | (ii) | curd |
| (c) | Formic acid | (iii) | unripe mangoes |
| (d) | Sodium hydroxide | (iv) | ant’s sting |
| (e) | Lactic acid | (v) | lime water |
Complete the following equation.
Na2CO3 + 2HCl → ______ + ______ + CO2↑
The acid which contains four hydrogen atoms ______.
