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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
From the list of the following salts choose the salt that most appropriately fits the
description is given in the following:
[AgCl, MgCl2, NaHSO4, PbCO3, ZnCO3, KNO3, Ca(NO3)2]
On heating, this salt gives a yellow residue when hot and white when cold
Write a balanced equation for the preparation of the following salts:
Copper sulphate from Copper Carbonate.
Name three chemicals made from common salt (or sodium chloride).
Give the names and formulae of any two salts. Also name the acids and bases from which these salt may be obtained.
A salt is dissolved in water and the pH of this salt solution is measured with a universal indicator paper. If the pH of solution is less than 7, the salt is most likely to be:
(a) CH3COONa
(b) Na2CO3
(c) KCl
(d) NH4Cl
Write the name and formula of one salt each which contains:
two molecules of water of crystallisation
Name a salts whose solubility increases with temperature.
Explain ‘salt hydrolysis’
name two salts which are neutral, when dissolved in water.
Sodium carbonate is a basic salt because it is a salt of a ____________.
