A) \[NaOH+HCl\]
B) \[C{{H}_{3}}COOH+C{{H}_{3}}COONa\]
C) \[N{{H}_{4}}OH+N{{H}_{4}}Cl\]
D) \[{{H}_{2}}C{{O}_{3}}+{{(N{{H}_{4}})}_{2}}C{{O}_{3}}\]
Correct Answer: B
Solution :
An acid buffer solution consists of a weak acid and its salt with strong base. i.e. \[C{{H}_{3}}COOH+C{{H}_{3}}COONa\]
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