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प्रश्न
Explain salt hydrolysis. Name two salts which are (a) acidic (b) basic (c) neutral, when dissolved in water.
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उत्तर
Salt hydrolysis : The reaction between a salt and water to produce an acid or a base is called salt hydrolysis or hydrolysis. By hydrolysis the salt, we can find out its parent acid and parent base.
For example : \[\ce{NaCI + H2O -> Na+ + CI-}\]
Salt which are acidic :
(i) Ammonium sulphate
(ii) Ammonium chloride
Salt which are basic :
(i) Potassium carbonate
(ii) Sodium acetate
Salt which are neutral:
(i) Ammonium acetate
(ii) Ammonium Carbonate.
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संबंधित प्रश्न
Define a mixed salt.
Name a chloride which is insoluble in cold water but dissolves in hot water.
Name two sulphates which are insoluble.
Name a basic salt.
Name an acidic salt.
Name a double salt.
From the formulae listed below, choose one in each case corresponding to the salt having the given description :
AgCI, CuCO3, CuSO4.5H2O, KNO3, NaCI, NaHSO4, Pb(NO3), ZnCO3, ZnSO4.7H2O
(a) An acid salt
(b) An insoluble chloride
(c) On treating with concentrated sulphuric acid, this salt changes from blue to white.
(d) On heating this salt changes from green to black.
(e) This salt gives nitrogen dioxide on heating
Identify the following:
A salt formed by the complete neutralization of an acid by a base.
From the formula listed below, choose one, in the following case, corresponding to the salt having the given description:
AgCl, CuCO3, CuSO4.5H2O, KNO3, NaCl, NaHSO4, Pb(NO3)2, ZnCO3, ZnSO4.7H2O.
On heating, this salt changes from green to black.
Give a suitable chemical term for:
A salt formed by incomplete neutralisation of an acid by a base.
