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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
One of the following is not an organic acid. This is:
(a) ethanoic acid
(b) formic acid
(c) citric acid
(d) carbonic acid
Give the names and formulae of two strong bases and two weak bases.
What type of ions is formed:
when a base (or alkali) is dissolved in water?
Name the acid present in vinegar.
What is the difference between an alkali and a metal hydroxide?
Why does blue color copper sulphate become white on heating?
A metal 'M' on reacting with dilute acid liberates a gas 'G'. The same metal also liberates gas 'G' when reacts with a base.
- Write the name of gas 'G'.
- How will you test the presence of this gas?
- Write chemical equations for the reactions of the metal with (1) an acid and (2) a base.
Which one of the following will not produce acid with water?
Select an oxide which dissolves in water forming an acid.
Bring the soil sample of your area, find out if it is acidic, basic or neutral. Discuss with farmers if they treat the soil in any manner.
