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प्रश्न
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?
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उत्तर
- Water of crystallization
- White
- By heating with any dehydrating agent
- Anhydrous calcium chloride
संबंधित प्रश्न
Which of the following salt has a blue colour and why?
CuSO4.5H2O or CuSO4
Give any two uses of common salt (sodium chloride).
What name is given to the common salt which is mined from underground deposits? How was this salt formed?
Fill in the following blank:
Common salt is obtained from sea-water by the process of.............
Name three products of the chlor-alkali process. State two uses of each of these products.
Which of the following salts will give an aqueous solution having pH of almost 7?
(a) NH4NO3
(b) NH4Cl
(c) CaCl2
(d) KCl
Write the name and formula of one salt each which contains:
five molecules of water of crystallisation
Define the following term:
Hygroscopy
Fill in the blank
___________ is the phenomenon by which hydrated salts on exposure to dry air, lose their water of crystallization and crumble to powder.
The chemical name of plaster of Paris is ______.
