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प्रश्न
The soil in a field in highly acidic. Name two materials which can be added to this soil to reduce its acidity. Give the reason for your choice.
उत्तर
The soil can be treated with bases such as quick lime (calcium oxide) or slaked lime (calcium hydroxide) to reduce its acidity.
These bases react with the excess acid present in the soil and neutralise its acidity. This increases the pH of the soil, which makes it suitable for the growth of various crops.
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संबंधित प्रश्न
What is produced if an acid is added to a base?
Water is never added to acid in order to dilute it why?
Give two examples of the following:
hydracids
Write balanced equation to satisfy the following statement:
\[\ce{Acid + Base -> Salt + water}\]
Main constituent of acid is ______.
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 |
When an acidic solution is mixed with a basic solution, they _________ each other forming _________ and water.
Curd contains ______ acid.
You are supplied with five solutions: A, B, C, D and E with pH values as follows: A = 1.8, B = 7, C = 8.5, D = 13, and E = 5
Classify these solutions as neutral, slightly or strongly acidic and slightly or strongly alkaline.
Which solution would be most likely to liberate hydrogen with powdered zinc metal. Give a word equation for each reaction.
Name the acid present in lemon.
