Chemistryhard · Past Paper
Which of these is a buffer solution?
A$HCl$ and $NaCl$
B$CH_3COOH$ and $CH_3COONa$
C$NaOH$ and $KOH$
D$HNO_3$ and $NH_4NO_3$
✓ Correct Answer: B — $CH_3COOH$ and $CH_3COONa$
A buffer solution consists of a weak acid and its conjugate base (salt).
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