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प्रश्न
What is deliquescence? What name is given to the compounds exhibiting such property?
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उत्तर
Deliquescence is the phenomenon by which certain salts absorb moisture from air, lose their water of crystallization and dissolve in it to form a saturated solution.
The substances which exhibit deliquescence are called deliquescent.
For example : Caustic soda NaOH, Caustic potash KOH.
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संबंधित प्रश्न
State one relevant observation for the following:
Anhydrous calcium chloride is exposed to air for some time.
Write a balanced equation for the preparation of the following salts:
Copper sulphate from copper carbonate.
How would you show that blue copper sulphate crystals contain water of crystallisation?
Write the name and formula of one salt which contains:
Five molecules of water of crystallisation.
name two salts which are basic.
Give four substances which contain water of crystallization and write their common name.
Taking sodium carbonate as an example, give the meaning of the following terms:
Water of crystallization
Identify the following substance:
Gas C has an offensive smell like rotten eggs.
Differentiate hydrate and anhydrous salts with examples.
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:
Sodium zincate
