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प्रश्न
Give one word for the following statement:
A substance which does not contain water .
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उत्तर
A substance which does not contain water anhydrous substances.
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संबंधित प्रश्न
Give the names and formulae of two substances.
Hydrated substance
What are drying or desiccating agents? Give examples.
Complete the following table:
|
Common Name |
Chemical Name |
Formula |
Acid, base or salt |
Efflorescent, hygroscopic or deliquescent substance |
|
Solid caustic potash |
|
|
|
|
|
Quick lime |
|
|
|
|
|
Oil of vitriol |
|
|
|
|
|
Washing soda |
|
|
|
|
|
Solid caustic soda |
|
|
|
|
|
Blue vitriol |
|
|
|
|
What are hydrous substances? Explain with examples.
Explain the following observation:
In the expression anhydrous copper sulphate, what is meant by “anhydrous”?
Select the correct answer from the choice given in the options.
An anhydrous crystal _____.
Differentiate between the following:
Deliquescent salt and hygroscopic salt
The molecular formula of green vitriol is MgSO4.7H2O.
Define Hydrated salt.
A hot saturated solution of copper sulphate forms crystals as it cools. Why?
