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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
What are the two main ways in which common salt (sodium chloride) occurs in nature?
Name the major salt present in sea-water.
Name the salt which is used as preservative in pickles, and in curing meat and fish.
Name three products of the chlor-alkali process. State two uses of each of these products.
Write the names, formulae and colours of any two hydrated salts.
name two salts which are acidic.
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
The pH values of three solutions A, B and C are given in the table. Answer the folloiwng questions:
| Solution | pH value |
| A | 12 |
| B | 2 |
| C | 7 |
Which solution will liberate CO2 when reacted with sodium carbonate?
Give four substances which contain water of crystallization and write their common name.
Sodium carbonate is a basic salt because it is a salt of a ____________.
