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सी.आई.एस.सी.ई.आयसीएसई ICSE Class 8

Give Reason. Acidic Soil is Treated with Quick Lime.

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प्रश्न

Give reason.

Acidic soil is treated with quick lime.

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उत्तर

If the soil is acidic it can be treated with base like quick lime, to make it neutral.

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पाठ 6: Chemical Reactions - Exercise 2 [पृष्ठ ८६]

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सेलिना Concise Chemistry [English] Class 8 ICSE
पाठ 6 Chemical Reactions
Exercise 2 | Q 8.2 | पृष्ठ ८६

संबंधित प्रश्‍न

State whether the following statement is true or false. In case a statement is false, write the corrected statement.

Formation of manure from leaves is a physical change.


When carbon dioxide is passed through lime water, it turns milky due to the formation of ______.


Complete and balance the following chemical equations

NaCI + `AgNO_3`  `→`


What are homogenous reactions ?


Name three reducing agents ?


Explain the following reaction with one suitable example of Displacement reaction.


Give an example of a reaction where the following are involved

Light


What do you observe? When

Water is added to the quick lime.


Name: A brown gas 


What do you observe when dilute sulphuric acid is added to the following:

Sodium Sulphide


Distinguish by heating the following in dry test tubs.

Zinc nitrate and copper nitrate.


Select the correct answer for the following options:

The gas obtained when potassium chlorate is heated in the presence of a catalyst.


Complete the table given below.

Heat on iodine crystals Colour of vapours evolved  

When lithium metal is placed in hydrochloric acid, _______ gas is evolved.


Silver metal can displace hydrogen gas from nitric acid.


State whether the following statement is true or false:

When a candle burns, both physical and chemical changes take place.


If you leave a piece of iron in the open for a few days, it acquires a film of brownish substance, called rust.

Can you change rust back into iron by some simple method?


Rusting of iron is  ______.


Why is spoiling food a chemical change?


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