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प्रश्न
Select the correct answer from the choice given in the options.
An anhydrate of a heptahydrate salt _____.
विकल्प
Cu(N03)2
Ca(NO3)2
FeSO4
CaSO4
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उत्तर
An anhydrate of a heptahydrate salt FeSO4
APPEARS IN
संबंधित प्रश्न
Give two examples of Crystalline anhydrous substances.
Water turns the colour of anhydrous copper sulphate .................
Give one word for the following statement:
Water molecules in loose chemical combination with other substances.
Give the names and formulae of two substances.
Hydrated substance
Give the names and formulae of two substances
Anhydrous substance
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 |
|
|
|
|
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.
Differentiate the function of concentrated sulphuric acid as a drying agent & as a dehydrating agent. Is fused calcium chloride a dehydrating or a desiccating agent. Give reasons.
Explain the following observation:
In the expression anhydrous copper sulphate, what is meant by “anhydrous”?
What happens when MgSO4.7H2O is heated? Write the appropriate equation?
