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प्रश्न
Taking sodium carbonate as an example, give the meaning of the following terms:
Water of crystallization
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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
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संबंधित प्रश्न
State whether the following statement is true or false:
Copper sulphate crystals are always wet due to the presence of water of crystallisation in them.
A salt whose aqueous solution will have a pH of more than 7 will be:
(a) K2CO3
(b) K2SO4
(c) NaCl
(d) NH4Cl
Give one example of a salt which gives an aqueous solution having:
pH less than 7
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?
Taking sodium carbonate as an example, give the meaning of the following terms:
Anhydrous
Outline the steps required to convert hydrogen chloride to anhydrous iron (III) chloride. Write the equations for the reactions.
Name gases which has a sour taste.
Distinguish by a chemical test sodium hydroxide solution and ammonium hydroxide solution.
How is normal salt obtained? Give a suitable reaction.
An aqueous solution of a salt turns blue litmus to red. The salt could be the one obtained by the reaction of ______.
