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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 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
The substance that can remove hydrogen and oxygen atoms in the ratio of 2:1(in the form of water) from the compound.
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.
Select the correct answer from the choice given in the options.
An anhydrous crystal _____.
Select the correct answer from the choice given in the options.
An anhydrate of a heptahydrate salt _____.
Give a reason for the following:
Heating a hydrated copper sulphate crystal is deemed a chemical change.
A hot saturated solution of copper sulphate forms crystals as it cools. Why?
What happens when MgSO4.7H2O is heated? Write the appropriate equation?
