Published by:
CGP EDU Academic Team
Published on: August 12, 2026
Buffer solutions have constant acidity and alkalinity because
A
these give unionised acid or base on reaction with added acid or alkali
B
acids and alkalies in these solutions are shielded from attack by other ions
C
they have large excess of 
or 
ions
or ions
D
they have fixed value of 
.
.
Text Solution
Verified by ExpertsThe correct answer is:
A
Buffer solutions resist changes in acidity or alkalinity by neutralizing added acids or bases. When a small amount of strong acid is added, the basic component of the buffer reacts with it to form a unionised, weak acid. Conversely, when a strong alkali is added, the acidic component of the buffer reacts with it to form unionised water and a weak salt. Because the added ions are locked up into unionised molecules, the overall pH remains relatively stable
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
Following solutions were prepared by mixing different volumes of NaOH and of different concentrati…
The solubility of in water is 2.42 at 298 K. The value of its solubility product will be (Given …
Which one of the following conditions will favour maximum formation of the product in the reaction?…
The equilibrium constants of the following are
;
;
;
The equilibrium constant ( K ) of the re…
Concentration of the ions in a saturated solution of is 2. mol Solubility product of is
A 20litre container at 400 contains at pressure 0.4 atm and an excess of (neglect the volume of …