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प्रश्न
State what would you observe when Washing Soda Crystals are exposed to the atmosphere
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उत्तर
When exposed to the atmosphere, it becomes a monohydrate.
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संबंधित प्रश्न
The salt whose aqueous solution will have no effect on either red litmus or blue litmus is ______.
Give one example of a salt which gives an aqueous solution having:
pH more than 7
Name a salt whose solubility decreases with temperature.
You are asked to prepare hard water in your laboratory. Select a group from the following groups of salts, any salt of which you may dissolve in distilled water to obtain hard water.
(A) NaCl; Na2SO4; KCl
(B) NaCl; CaCl2; KCl
(C) CaCl2; CaSO4; MgSO4
(D) Na2SO4; CaSO4; MgSO4
Define the following term:
Hygroscopy
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?
Distinguish by a chemical test sodium carbonate and sodium sulphite.
Differentiate hydrate and anhydrous salts with examples.
Acids react with metallic oxides to produce ______.
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:
Copper sulphate
