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प्रश्न
Give the names and formulae of two substances.
Hydrated substance
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उत्तर
Washing soda crystals: Na2CO3.10H2O
Blue vitriol: CuSO4.5 H2O
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संबंधित प्रश्न
Water turns the colour of anhydrous copper sulphate .................
The sticky substance formed when soap is added to hard water is ______.
Give one word for the following statement:
A substance which does not contain water .
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 word from the words in option to complete the sentence:
Efflorescence occurs when the vapour pressure of the hydrated crystals is ____ than the vapour pressure of the atmospheric humidity.
Select the correct answer from the choice given in the options.
An anhydrous crystal _____.
Select the correct answer from the choice given in the options.
An anhydrate of a heptahydrate salt _____.
Name or state the following:
A liquid hydroscopic substance.
The molecular formula of green vitriol is MgSO4.7H2O.
