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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
Define water of crystallization. Give two examples with formulae.
Give two examples for Deliquescent substance.
What do you observe when Blue vitriol is heated?
Water turns the colour of anhydrous copper sulphate .................
Differentiate between ‘hydrated’ & ‘anhydrous’ crystals. Give the chemical formula of – the following hydrated crystals -
(a) Washing soda
(b) Gypsum
(c) Blue vitriol
(d) Epsom salt
(e) Glauber’s salt.
State which crystal from (a) to (e) is a pentahydrate.
Explain the following observation:
In the expression anhydrous copper sulphate, what is meant by “anhydrous”?
Give a reason for the following:
Heating a hydrated copper sulphate crystal is deemed a chemical change.
Differentiate between the following:
Deliquescent salt and hygroscopic salt
The molecular formula of green vitriol is MgSO4.7H2O.
A hot saturated solution of copper sulphate forms crystals as it cools. Why?
