Advertisements
Advertisements
Question
What is deliquescence? What name is given to the compounds exhibiting such property?
Advertisements
Solution
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.
APPEARS IN
RELATED QUESTIONS
What name is given to the common salt which is mined from underground deposits? How was this salt formed?
Why is the electrolysis of a concentrated solution of sodium chloride known as chlor-alkali process?
What is meant by ‘a family of salts’? Explain with examples.
What is meant by ‘hydrated’ salts? Explain with examples.
Give one example of a salt which gives an aqueous solution having:
pH equal to 7
Write the name and formula of one salt which contains:
Two molecules of water of crystallisation.
Name a salt whose solubility decreases with temperature.
Taking sodium carbonate as an example, give the meaning of the following terms:
Anhydrous
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?
Name gases which has a sour taste.
