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Question
Water turns the colour of anhydrous copper sulphate .................
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Solution
Water turns the colour of anhydrous copper sulphate blue.
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RELATED QUESTIONS
Define water of crystallization. Give two examples with formulae.
The sticky substance formed when soap is added to hard water is ______.
State the methods by which hydrated salts can be made anhydrous.
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”?
Differentiate between hydrated and anhydrous crystals with examples. State three defined changes that occur when hydrated copper sulphate is heated.
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Heating a hydrated copper sulphate crystal is deemed a chemical change.
The molecular formula of green vitriol is MgSO4.7H2O.
Define Hydrated salt.
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