A) \[NaOH+NaCl\]
B) \[NaOH+N{{a}_{2}}C{{O}_{3}}\]
C) \[C{{H}_{3}}COOH+C{{H}_{3}}COONa\]
D) None of the above
Correct Answer: C
Solution :
Buffer solutions are obtained, when a weak acid is mixed with its conjugate base or a weak base is mixed with its conjugate acid. Hence, solution of acetic acid and sodium acetate is a Buffers solution.
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