A) \[NaOH+NaCl\]
B) \[KOH+KN{{O}_{3}}\]
C) \[C{{H}_{3}}COOH+C{{H}_{3}}COONa\]
D) all of the above
Correct Answer: C
Solution :
Buffer solution is obtained when a solution is prepared of either (weak acid +its salt with strong base) or (weak base + it salt with strong acid). Hence, \[C{{H}_{3}}COOH+C{{H}_{3}}COONa\] is a Buffer solution.
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