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प्रश्न
State one relevant observation for the following:
Anhydrous calcium chloride is exposed to air for some time.
उत्तर
Anhydrous CaCl2 on exposure to atmosphere form solution.
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संबंधित प्रश्न
Write a balanced equation for the preparation of the following salts:
Copper sulphate from Copper Carbonate.
What are the two main ways in which common salt (sodium chloride) occurs in nature?
How is common salt obtained from sea-water?
Fill in the following blank:
Rock salt is mined just like ......................
Explain ‘salt hydrolysis’
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.
Acids react with metallic oxides to produce ______.
How is normal salt obtained? Give a suitable reaction.
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
