MCQ
Which of the following is a buffer solution ?
- AA solution of $KCl$ and $KOH$
- BA solution of $CH_3COOK$
- CA solution of $K_2SO_4$ and $NH_4OH$
- ✓A solution of $PhCOOK$ and $PhCOOH$
✓
Answer
Correct option: D.
A solution of $PhCOOK$ and $PhCOOH$
d
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