A) \[KOH\] and \[KCl\]
B) \[{{K}_{2}}S{{O}_{4}}\] and \[{{H}_{2}}S{{O}_{4}}\]
C) \[NaOH\] and \[KOH\]
D) \[C{{H}_{3}}COOH\] and \[C{{H}_{3}}COONa\]
Correct Answer: D
Solution :
\[C{{H}_{3}}COOH\] and \[C{{H}_{3}}COONa\] is a acidic buffer solution because it is a mixture of weak acid and its salt with strong base.
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