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प्रश्न
Select the correct answer from the choice given in the options.
An anhydrate of a heptahydrate salt _____.
पर्याय
Cu(N03)2
Ca(NO3)2
FeSO4
CaSO4
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उत्तर
An anhydrate of a heptahydrate salt FeSO4
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संबंधित प्रश्न
What do you observe when Blue vitriol is heated?
Water turns the colour of anhydrous copper sulphate .................
Name three methods by which hydrous substances 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.
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.
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.
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?
What happens when MgSO4.7H2O is heated? Write the appropriate equation?
