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प्रश्न
What are hydrous substances? Explain with examples.
उत्तर
Substances which contain water molecules along with salt are hydrated substances.
Examples: Sodium carbonate decahydrate: Na2CO3.10H2O
Copper sulphate pentahydrate: CuSO4.5H2O
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संबंधित प्रश्न
Give one word for the following statement:
A property due to which a substance absorbs water without dissolving.
Give one word for the following statement:
Water molecules in loose chemical combination with other substances.
State the methods by which hydrated salts can be made anhydrous.
Name three methods by which hydrous substances can be made anhydrous.
The process of separation or deposition of crystals from a hot saturated solution on gentle cooling of the solution is called ‘crystallization’. With reference to the statement explain what is meant by ‘water of crystallization. State which physical properties of a crystal are correlated with the water of crystallization.
Differentiate between an efflorescent, deliquescent & ‘ hygroscopic substance with suitable examples.
Differentiate between hydrated and anhydrous crystals with examples. State three defined changes that occur when hydrated copper sulphate is heated.
Select the correct answer from the choice given in the options.
An anhydrate of a heptahydrate salt _____.
Differentiate between the following:
Deliquescent salt and hygroscopic salt
A hot saturated solution of copper sulphate forms crystals as it cools. Why?
