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प्रश्न
Explain salt hydrolysis. Name two salts which are (a) acidic (b) basic (c) neutral, when dissolved in water.
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
Name a double salt.
Write the reactions of SO2 and oxides of nitrogen which leads to acid rain formation.
Give the name and formula of the acid salt which gives sodium ions and sulphate ions in solution.
What is the term defined by the following?
A salt containing a metal ion surrounded by other ions or molecules.
Select the correct answer from the choices a,b,c and d which are given.Write only the letter corresponding to the correct answer.
An example of a complex salt is
Salts A, B, C, D and E undergo reactions (i) to (v) respectively. Identify the anion present in these salts on the basis of these reactions. Tabulate your answers in the format given below:
(i) When silver nitrate solution is added to asolution of A, a white precipitate, insoluble in dilute nitric acid, is formed.
(ii) Addition of dilute hydrochloric acid to B produces a gas which turns lead acetate paper black.
(iii) When a freshly prepared solution of ferrous sulphate is added to a solution of C and concentrated sulphuric acid is gently poured from the side of the test, a brown ring is formed.
(iv) When dilute sulphuric acid is added to D, a gas is produced which turns acidified potassium dichromate solution from orange to green.
(v) Addition of dilute hydrochloric acid to E produces an effervescence. The gas produced turns limewater milky but does not affect acidified potassium dichromate solution.
| Salt | Anion |
| A | |
| B | |
| C | |
| D | |
| E |
Define the following and give two examples in case an acid salt .
What are basic salts? Give a suitable reaction for this.
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.
This salt gives nitrogen dioxide on heating.
Give a suitable chemical term for:
A salt formed by incomplete neutralisation of an acid by a base.
