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प्रश्न
Give the names and formulae of two substances.
Hydrated substance
उत्तर
Washing soda crystals: Na2CO3.10H2O
Blue vitriol: CuSO4.5 H2O
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संबंधित प्रश्न
Define water of crystallization. Give two examples with formulae.
Give two examples of Crystalline anhydrous substances.
What do you observe when Blue vitriol is heated?
Give one word for the following statement:
Water molecules in loose chemical combination with other substances.
The process of separation or deposition of crystals from a hot saturated solution on gentle cooling of the solution is called ‘crystallization’. With reference to the statement explain what is meant by ‘water of crystallization. State which physical properties of a crystal are correlated with the water of crystallization.
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.
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.
What happens when MgSO4.7H2O is heated? Write the appropriate equation?
