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प्रश्न
Complete the statement by filling the blank with the correct word from the option.
Hygroscopic substance absorb moisture from the atmosphere & _______their original state.
पर्याय
do not change
change
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उत्तर
Hygroscopic substance absorb moisture from the atmosphere & do not change their original state.
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संबंधित प्रश्न
Give two examples of Crystalline anhydrous substances.
What do you observe when Blue vitriol is heated?
Water turns the colour of anhydrous copper sulphate .................
Give the names and formulae of two substances.
Hydrated substance
What are drying or desiccating agents? Give examples.
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.
Explain the following observation:
In the expression anhydrous copper sulphate, what is meant by “anhydrous”?
Name or state the following:
A liquid hydroscopic substance.
Differentiate between the following:
Deliquescent salt and hygroscopic salt
What happens when MgSO4.7H2O is heated? Write the appropriate equation?
