Which of the following 1: 1 mixture will act as buffer solution?

Question

Which of the following 1: 1 mixture will act as buffer solution? (A)  HCl and NaOH  (B)  KOH and CH3COOH  (C)  CH3COOH and NaCl  (D)  CH3COOH and CH3COONa

Tardigrade Admin · Accepted Answer

Buffer is a mixture of weak acid with its salt with strong base or mixture of weak base and its salt with strong acid:
[a]

H Cl + N a O H

is not buffer because both are strong acid and strong base.
[b]

K O H + C H_{3} COO H

is not buffer because they do not have common ion.
[c]

C H_{3} COO H + N a Cl

is not buffer because they do not have common ion.
[d]

C H_{3} COO H + C H_{3} COON a

are buffer because

C H_{3} COO H

is weak acid and

C H_{3} COON a

its salt with strong base

(N a O H)

.

Q. Which of the following $1 : 1$ mixture will act as buffer solution?

$H Cl$ and $N a O H$

$K O H$ and $C H_{3} COO H$

$C H_{3} COO H$ and $N a Cl$

$C H_{3} COO H$ and $C H_{3} COON a$

Q. Which of the following 1:1 mixture will act as buffer solution?

HCl and NaOH

KOH and CH3​COOH

CH3​COOH and NaCl

CH3​COOH and CH3​COONa

Q. Which of the following $1 : 1$ mixture will act as buffer solution?

$H Cl$ and $N a O H$

$K O H$ and $C H_{3} COO H$

$C H_{3} COO H$ and $N a Cl$

$C H_{3} COO H$ and $C H_{3} COON a$