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प्रश्न
Give four substances which contain water of crystallization and write their common name.
उत्तर
(i) Na2CO3.10H2O = Washing soda
(ii) MgSO4.7H2O = Epsom salt
(iii) CuSO4.5H2O = Blue vitriol
(iv) ZnSO4.7H2O = White vitriol
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संबंधित प्रश्न
Name the major salt present in sea-water.
Fill in the following blank:
Common salt is obtained from sea-water by the process of.............
What happens when a concentrated solution of sodium chloride (brine) is electrolysed? Write the equation of the reaction involved.
The salt whose aqueous solution will have no effect on either red litmus or blue litmus is
(a) potassium sulphate
(b) sodium carbonate
(c) ammonium sulphate
(d) sodium acetate
Name a salts whose solubility increases with temperature.
Name a salt whose solubility decreases with temperature.
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
The chemical name of plaster of Paris is ______.
An aqueous solution of a salt turns blue litmus to red. The salt could be the one obtained by the reaction of ______.
