Which of the following is the buffer solution of strong acidic nature�

1.	Which of the following is the buffer solution of strong acidic nature [MP PET 2002]
A.	\[HCOOH+HCO{{O}^{-}}\]
B.	\[C{{H}_{3}}COOH+C{{H}_{3}}CO{{O}^{-}}\]
C.	\[{{H}_{2}}{{C}_{2}}{{O}_{4}}+{{C}_{2}}O_{4}^{2-}\]
D.	\[{{H}_{3}}B{{O}_{3}}+BO_{3}^{3-}\]
Answer» B. \[C{{H}_{3}}COOH+C{{H}_{3}}CO{{O}^{-}}\]

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