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प्रश्न
Give two examples of Crystalline anhydrous substances.
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उत्तर
Common salt (NaCl), potassium nitrate (KNO3), sugar (C12H22O111), etc.
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संबंधित प्रश्न
Define water of crystallization. Give two examples with formulae.
Give two examples for Deliquescent substance.
What do you observe when Blue vitriol is heated?
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
Anhydrous substance
What are drying or desiccating agents? Give examples.
Complete the following table:
|
Common Name |
Chemical Name |
Formula |
Acid, base or salt |
Efflorescent, hygroscopic or deliquescent substance |
|
Solid caustic potash |
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|
|
|
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Quick lime |
|
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|
|
|
Oil of vitriol |
|
|
|
|
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Washing soda |
|
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|
|
|
Solid caustic soda |
|
|
|
|
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Blue vitriol |
|
|
|
|
Complete the statement by filling the blank with the correct word from the option.
Hygroscopic substance absorb moisture from the atmosphere & _______their original state.
Explain the following observation:
In the expression anhydrous copper sulphate, what is meant by “anhydrous”?
