MCQ
Which buffer solution out of the following will have $pH > 7$
- A$C{H_3}COOH + C{H_3}COONa$
- B$HCOOH + HCOOK$
- C$C{H_3}COON{H_4}$
- ✓$N{H_4}OH + N{H_4}Cl$
✓
Answer
Correct option: D.
$N{H_4}OH + N{H_4}Cl$
d
A solution that resists change in $pH$ value upon addition of small amount of strong acid or base (less than $1 \,\%$ ) or when solution is diluted is called buffer solution.
A solution that resists change in $pH$ value upon addition of small amount of strong acid or base (less than $1 \,\%$ ) or when solution is diluted is called buffer solution.
Basic buffer solution : A basic buffer solution consists of a mixture of a weak base and its salt with strong acid. The best known example is a mixture of $NH _4 OH$ and $NH _4 Cl$.
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