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Chemistry
Which of the following pairs constitute a buffer ?
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Q. Which of the following pairs constitute a buffer ?
KCET
KCET 2022
A
$NaOH$ and $NaCl$
B
$HNO _{3}$ and $NH _{ a } NO _{3}$
C
$HCl$ and $KCl$
D
$HNO _{2}$ and $NaNO _{2}$
Solution:
Correct answer is (b) $HNO _{3}$ and $NH _{ a } NO _{3}$