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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 an acidic salt.
Define a mixed salt.
Name a double salt.
Why common salt gets wet during rainy season?
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
State the inference drawn from the following observation :
On carrying out the flame test with a salt P a brick red flame was obtained. What is the cation in P?
Define the following and give two examples in case a normal salt .
Define the following and give two examples in case an acid salt .
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 treating with concentrated sulphuric acid, this salt changes from blue to white.
Match the following in column A with the correct answer from the choices given in column B:
| Column A | Column B |
| 1. Ammonium hydroxide solution | (i) Contains only ions |
| 2. Dilute hydrochloric acid | (ii) Contains only molecules |
| 3. Carbon tetrachloride | (iii) Contains ions and molecules |
