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प्रश्न
Explain the following observation:
Why is fused calcium chloride or cone, sulphuric acid used in a desiccator?
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उत्तर
Anhydrous or fused calcium chloride is highly hygroscopic in nature it readily absorbs moisture, also it is deliquescent in nature and is therefore used as a drying agent in a desiccator.
Concentrated sulphuric acid being hygroscopic in nature absorbs moisture from the air and gets diluted and acts as a drying agent as well as a dehydrating agent and hence is used in a desiccator.
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संबंधित प्रश्न
Give two examples for Deliquescent substance.
Water turns the colour of anhydrous copper sulphate .................
What are drying or desiccating agents? Give examples.
Explain the following observation:
In the expression anhydrous copper sulphate, what is meant by “anhydrous”?
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.
Differentiate between the following:
Deliquescent salt and hygroscopic salt
The molecular formula of green vitriol is MgSO4.7H2O.
Define Hydrated salt.
A hot saturated solution of copper sulphate forms crystals as it cools. Why?
