Published by:
CGP EDU Academic Team
Published on: August 13, 2026
A physician wishes to prepare a buffer solution at 
that efficiently resists changes
in pH yet contains only small concentration of the buffering agents. Which one of the following weak acids together with its sodium salt would be best to use?
A
-chlorobenzoic acid 
B
-chlorocinnamic acid 
) C
2,5-dihydroxy benzoic acid ( 
)
) D
Acetoacetic acid 
Text Solution
Verified by ExpertsThe correct answer is:
D
As we know, 
For highest buffer capacity 
So, 
should be 3.58.
Hence, acetoacetic acid 
will be best to use.
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