Advertisements
Advertisements
प्रश्न
Taking sodium carbonate as an example, give the meaning of the following terms:
Water of crystallization
Advertisements
उत्तर
It is the fixed amount of water that is present in a crystal as an integral pat of its constitution. Compounds having water of crystallization are called hydrous salts.
For example: Sodium carbonate Na2CO3 has 10 molecules of water present as water of crystallization Na2CO3.10H2O
APPEARS IN
संबंधित प्रश्न
Name three chemicals made from common salt (or sodium chloride).
Name the salt which is used as a preservative in pickles, and in curing meat and fish.
How would you show that blue copper sulphate crystals contain water of crystallisation?
What happens when a few drops of water are added to anhydrous copper sulphate? Explain with the help of an equation.
What is meant by ‘hydrated’ salts? Explain with examples.
The pH values of three solutions A, B and C are given in the table. Answer the following questions:
| Solution | pH value |
| A | 12 |
| B | 2 |
| C | 7 |
- Which solution will have no effect on litmus solution?
- Which solution will liberate CO2 when reacted with sodium carbonate?
- Which solution will turn red litmus solution blue?
What is deliquescence? What name is given to the compounds exhibiting such property?
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.
Name gases which has a sour taste.
Name the anion present in the following compound:
Compound A, when warmed with concentrated sulphuric acid, gives a gas which fumes in moist air and which gives dense white fumes with ammonia.
