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प्रश्न
Give the names and formulae of two substances.
Hydrated substance
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उत्तर
Washing soda crystals: Na2CO3.10H2O
Blue vitriol: CuSO4.5 H2O
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संबंधित प्रश्न
Give two examples for Deliquescent substance.
What do you observe when Blue vitriol is heated?
Give the names and formulae of two substances
Anhydrous substance
What are drying or desiccating agents? Give examples.
What are hydrous substances? Explain with examples.
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:
Why is fused calcium chloride or cone, sulphuric acid used in a desiccator?
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.
Name or state the following:
A liquid hydroscopic substance.
What happens when MgSO4.7H2O is heated? Write the appropriate equation?
