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प्रश्न
Taking sodium carbonate as an example, give the meaning of the following terms:
Anhydrous
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उत्तर
Hydrous salt on heating lose their water of crystallization, such salts are then called anhydrous.
For example: Na2CO3.10H2O on losing 10 molecules of water forms Na2CO3.
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संबंधित प्रश्न
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(c) ammonium sulphate
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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
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(C) 3, 5 and 6
(D) 2, 4 and 5
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Strong electrolyte
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