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Chemistry
Which of the following can form buffer solution?
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Q. Which of the following can form buffer solution?
BITSAT
BITSAT 2017
A
Aq. $NH _{3}+ NH _{4} OH$
80%
B
$KOH + HNO _{3}$
0%
C
$NaOH + HCl$
0%
D
$KI + KOH$
20%
Solution:
$Ag \cdot NH _{3}+ NH _{4} OH$
because buffer solution is an aquous solution consisting of a minture of a weak acid and its conjugate base.