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A mixture of NH4Cl and NH4OH shows no change in pH upon addition small amount of HCl. This is because it is
- a)A neutral solution
- b)A buffer
- c)A basic solution due to presence of NH4OH
- d)An acidic solution due to presence of NH4Cl
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
A mixture of NH4Cl and NH4OH shows no change in pH upon addition small...
A mixture of weak base and its salt with a strong acid serves as an basic buffer which resists changes in pH upon addition of small amount of acid or base.
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A mixture of NH4Cl and NH4OH shows no change in pH upon addition small...
Understanding the Buffer Solution
A mixture of NH4Cl (ammonium chloride) and NH4OH (ammonium hydroxide) acts as a buffer solution. Let's break down why this is the case.
What is a Buffer?
- A buffer solution is designed to resist changes in pH when small amounts of acid or base are added.
- It typically consists of a weak acid and its conjugate base or a weak base and its conjugate acid.
Composition of the Mixture
- NH4OH is a weak base, which partially dissociates in water to release OH- ions.
- NH4Cl contains NH4+, which is the conjugate acid of NH4OH.
How It Works
- When HCl (a strong acid) is added to this mixture, it introduces H+ ions into the solution.
- The NH4OH can react with these H+ ions to form NH4+, thus minimizing the change in pH.
- At the same time, the NH4+ from NH4Cl can also react with OH- ions present to form water, further stabilizing the pH.
Conclusion
- The ability of this mixture to maintain its pH despite the addition of HCl is characteristic of a buffer.
- Therefore, the correct answer is that the mixture functions as a buffer solution (option B), effectively counteracting pH changes and maintaining a relatively stable environment.
This property is crucial in many biological and chemical processes, where maintaining a constant pH is essential for system stability.
A mixture of NH4Cl (ammonium chloride) and NH4OH (ammonium hydroxide) acts as a buffer solution. Let's break down why this is the case.
What is a Buffer?
- A buffer solution is designed to resist changes in pH when small amounts of acid or base are added.
- It typically consists of a weak acid and its conjugate base or a weak base and its conjugate acid.
Composition of the Mixture
- NH4OH is a weak base, which partially dissociates in water to release OH- ions.
- NH4Cl contains NH4+, which is the conjugate acid of NH4OH.
How It Works
- When HCl (a strong acid) is added to this mixture, it introduces H+ ions into the solution.
- The NH4OH can react with these H+ ions to form NH4+, thus minimizing the change in pH.
- At the same time, the NH4+ from NH4Cl can also react with OH- ions present to form water, further stabilizing the pH.
Conclusion
- The ability of this mixture to maintain its pH despite the addition of HCl is characteristic of a buffer.
- Therefore, the correct answer is that the mixture functions as a buffer solution (option B), effectively counteracting pH changes and maintaining a relatively stable environment.
This property is crucial in many biological and chemical processes, where maintaining a constant pH is essential for system stability.
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A mixture of NH4Cl and NH4OH shows no change in pH upon addition small amount of HCl. This is because it isa)A neutral solutionb)A bufferc)A basic solution due to presence of NH4OHd)An acidic solution due to presence of NH4ClCorrect answer is option 'B'. Can you explain this answer? for Class 11 2025 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about A mixture of NH4Cl and NH4OH shows no change in pH upon addition small amount of HCl. This is because it isa)A neutral solutionb)A bufferc)A basic solution due to presence of NH4OHd)An acidic solution due to presence of NH4ClCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 11 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A mixture of NH4Cl and NH4OH shows no change in pH upon addition small amount of HCl. This is because it isa)A neutral solutionb)A bufferc)A basic solution due to presence of NH4OHd)An acidic solution due to presence of NH4ClCorrect answer is option 'B'. Can you explain this answer?.
A mixture of NH4Cl and NH4OH shows no change in pH upon addition small amount of HCl. This is because it isa)A neutral solutionb)A bufferc)A basic solution due to presence of NH4OHd)An acidic solution due to presence of NH4ClCorrect answer is option 'B'. Can you explain this answer? for Class 11 2025 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about A mixture of NH4Cl and NH4OH shows no change in pH upon addition small amount of HCl. This is because it isa)A neutral solutionb)A bufferc)A basic solution due to presence of NH4OHd)An acidic solution due to presence of NH4ClCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 11 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A mixture of NH4Cl and NH4OH shows no change in pH upon addition small amount of HCl. This is because it isa)A neutral solutionb)A bufferc)A basic solution due to presence of NH4OHd)An acidic solution due to presence of NH4ClCorrect answer is option 'B'. Can you explain this answer?.
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A mixture of NH4Cl and NH4OH shows no change in pH upon addition small amount of HCl. This is because it isa)A neutral solutionb)A bufferc)A basic solution due to presence of NH4OHd)An acidic solution due to presence of NH4ClCorrect answer is option 'B'. Can you explain this answer?, a detailed solution for A mixture of NH4Cl and NH4OH shows no change in pH upon addition small amount of HCl. This is because it isa)A neutral solutionb)A bufferc)A basic solution due to presence of NH4OHd)An acidic solution due to presence of NH4ClCorrect answer is option 'B'. Can you explain this answer? has been provided alongside types of A mixture of NH4Cl and NH4OH shows no change in pH upon addition small amount of HCl. This is because it isa)A neutral solutionb)A bufferc)A basic solution due to presence of NH4OHd)An acidic solution due to presence of NH4ClCorrect answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
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