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Explain How Anhydrous Copper Sulphate Can Be Used to Detect the Presence of Moisture (Water) in a Liquid - Science

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प्रश्न

Explain how anhydrous copper sulphate can be used to detect the presence of moisture (water) in a liquid

उत्तर

A few drops of the liquid to be tested are added to white anhydrous copper sulphate powder. The appearance of a blue colour in anhydrous copper sulphate indicates the presence of moisture or water in the liquid.

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अध्याय 2: Acids, Bases and Salts - Exercise 3 [पृष्ठ ९८]

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लखमीर सिंग Chemistry (Science) [English] Class 10
अध्याय 2 Acids, Bases and Salts
Exercise 3 | Q 37.3 | पृष्ठ ९८

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संबंधित प्रश्न

Write a balanced chemical equation for Action of dilute hydrochloric acid on magnesium sulphite.


What name is given to the common salt which is mined from underground deposits? How was this salt formed?


Name a salts whose solubility increases with temperature.


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


Taking sodium carbonate as an example, give the meaning of the following terms: Water of crystallization.


Answer the following questions below, relating your answers only to salts in the following list:
Sodium chloride, anhydrous calcium chloride, copper sulphate-5-water.
(i) What is the name given to the water in the compound copper sulphate-5-water?
(ii) If copper sulphate-5-water is heated, the water is driven off leaving anhydrous copper sulphate. What is the colour of anhydrous copper sulphate?
(iii) By what means, other than heating, you can dehydrate copper sulphate-5-water and obtain anhydrous copper sulphate?
(iv) Which one of the salts in the given list is deliquescent?


State what would you observe when :
Washing soda crystals are exposed to the atmosphere.


Write any five uses of salts.


The chemical name of plaster of Paris is ______.


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:

Ferric chloride


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