MCQ
Buffer solution is prepared by mixing
  • A
    Strong acid + its salt of strong base
  • B
    Weak acid + its salt of weak base
  • C
    Strong acid + its salt of weak base
  • Weak acid + its salt of strong base

Answer

Correct option: D.
Weak acid + its salt of strong base
d
A solution that resists change in $pH$ value upon addition of a small amount of strong acid or base (less than $1\, \%$ ) or when the solution is diluted is called buffer solution.

An acidic buffer solution consists of a solution of a weak acid and its salt with a strong base. while basic buffer solution consists of a mixture of a weak base and its salt with strong acid.

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