A) \[NaCl+NaOH\]
B) \[C{{H}_{3}}COONa+C{{H}_{3}}COOH\]
C) \[C{{H}_{3}}COOH+C{{H}_{3}}COON{{H}_{4}}\]
D) \[{{H}_{2}}S{{O}_{4}}+CuS{{O}_{4}}\]
Correct Answer: B
Solution :
The Buffers solutions are those solutions which resists the change in its pH value on addition of small amount of a base or an acid. \[C{{H}_{3}}COOH\] and\[C{{H}_{3}}COONa\] solution is Buffers solution because it is a solution of weak acid and its salt with strong base.
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