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The hydrolysis of a salt of strong acid and weak base is called
- a)anionic hydrolysis
- b)cationic hydrolysis
- c)neutral hydrolysis
- d)amphoteric hydrolysis
Correct answer is option 'B'. Can you explain this answer?
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The hydrolysis of a salt of strong acid and weak base is calleda)anion...
Acid is strong hence solution will be acidic in nature then it will give H+ ion hence called as cationic hydrolysis.
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The hydrolysis of a salt of strong acid and weak base is calleda)anion...
Understanding Hydrolysis
Hydrolysis is a chemical process where water interacts with a salt to produce an acid and a base. The type of salt determines the nature of hydrolysis, particularly whether it involves cations or anions.
Salt of Strong Acid and Weak Base
When a salt derived from a strong acid and a weak base is dissolved in water, it undergoes hydrolysis primarily through the cation. This is because:
- Strong Acids: They completely dissociate in water, contributing hydrogen ions (H+).
- Weak Bases: They do not completely dissociate, leading to the presence of their conjugate acids in solution.
Cationic Hydrolysis
In the case of a salt from a strong acid and weak base, the cation (from the weak base) interacts with water, resulting in cationic hydrolysis. Here’s how it works:
- Protonation: The cation from the weak base can accept a proton (H+) from water, forming the corresponding weak base and hydronium ions (H3O+).
- Resulting Effect: This reaction lowers the pH of the solution, making it acidic.
Examples
- Ammonium Chloride (NH4Cl): Derived from hydrochloric acid (strong) and ammonia (weak). Upon dissolving, NH4+ ions undergo hydrolysis to form NH3 and H3O+, increasing acidity.
Conclusion
Thus, the hydrolysis of a salt from a strong acid and weak base is termed cationic hydrolysis, as the cation from the weak base is responsible for the reaction with water, leading to an acidic solution.
Hydrolysis is a chemical process where water interacts with a salt to produce an acid and a base. The type of salt determines the nature of hydrolysis, particularly whether it involves cations or anions.
Salt of Strong Acid and Weak Base
When a salt derived from a strong acid and a weak base is dissolved in water, it undergoes hydrolysis primarily through the cation. This is because:
- Strong Acids: They completely dissociate in water, contributing hydrogen ions (H+).
- Weak Bases: They do not completely dissociate, leading to the presence of their conjugate acids in solution.
Cationic Hydrolysis
In the case of a salt from a strong acid and weak base, the cation (from the weak base) interacts with water, resulting in cationic hydrolysis. Here’s how it works:
- Protonation: The cation from the weak base can accept a proton (H+) from water, forming the corresponding weak base and hydronium ions (H3O+).
- Resulting Effect: This reaction lowers the pH of the solution, making it acidic.
Examples
- Ammonium Chloride (NH4Cl): Derived from hydrochloric acid (strong) and ammonia (weak). Upon dissolving, NH4+ ions undergo hydrolysis to form NH3 and H3O+, increasing acidity.
Conclusion
Thus, the hydrolysis of a salt from a strong acid and weak base is termed cationic hydrolysis, as the cation from the weak base is responsible for the reaction with water, leading to an acidic solution.
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The hydrolysis of a salt of strong acid and weak base is calleda)anionic hydrolysisb)cationic hydrolysisc)neutral hydrolysisd)amphoteric hydrolysisCorrect answer is option 'B'. Can you explain this answer?
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