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Chemistry
Which one of the following pairs of solution is an acidic buffer?
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Q. Which one of the following pairs of solution is an acidic buffer?
A
$H _{2} SO _{4}+ NaOH$
13%
B
$CH _{3} COOH + HCOONa$
65%
C
$HCN + NaCN$
9%
D
$NH _{4} OH + NH _{4} Cl$
13%
Solution:
A mixture of a weak acid and its salt with a strong base forms an acidic buffer