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प्रश्न
State what would you observe when :
The salt ferric chloride is exposed to the atmosphere.
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उत्तर
It absorbs moisture from the atmosphere and becomes moist and ultimately dissolves in the absorbed water, forming a saturated solution.
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संबंधित प्रश्न
Write a balanced chemical equation for Action of dilute hydrochloric acid on magnesium sulphite.
State one relevant observation for the following:
Anhydrous calcium chloride is exposed to air for some time.
The salt prepared by the method of direct combination is _______.
Give any two uses of common salt (sodium chloride).
Explain how anhydrous copper sulphate can be used to detect the presence of moisture (water) in a liquid.
What happens when a few drops of water are added to anhydrous copper sulphate? Explain with the help of an equation.
name two salts which are basic.
Hard water required for an experiment is not available in a school laboratory. However, following salts are available in the laboratory. Select the salts which may be dissolved in water to make it hard for the experiment.
|
(1) |
Calcium Sulphate |
(2) |
Sodium Sulphate |
|
(3) |
Calcium Chloride |
(4) |
Potassium Sulphate |
|
(5) |
Sodium Hydrogen Carbonate |
(6) |
Magnesium Chloride |
(A) 1, 2 and 4
(B) 1, 3 and 6
(C) 3, 5 and 6
(D) 2, 4 and 5
Answer the questions below relating your answers only to salts in the following list: Sodium chloride, anhydrous calcium chloride, copper sulphate-5-water?
- What name is given to the water in the compound copper sulphate-5-water?
- If copper sulphate-5-water is heated, anhydrous coppersulphate is formed. What is its colour?
- By what means, other than healing, could you dehydrate copper sulphate-5-water and obtain anhydrous coppersulphate?
- Which one of the salts in the given list is deliquescent?
You are provided with the list of chemicals mentioned below in the box:
| Sodium hydroxide solution, copper carbonate, zinc, hydrochloric acid, copper, dilute sulphuric acid, chlorine, iron |
Using suitable chemicals from the list given, write a balanced chemical equation for the preparation of the salt mentioned below:
Sodium zincate
