Which of the following statement is correct?

Question

Which of the following statement is correct? (A) Acidic buffer consist of a strong acid and its salt with weak base in a fixed proportion. (B) pH of the buffer solution changes by dilution. (C) Natural buffer are the solution of salts of weak acid and weak base. (D) Glycine + glycine hydrochloride is an example of acidic buffer.

Tardigrade Admin · Accepted Answer

Statement (c) is correct, while the other statements are incorrect.
Corrected form are as follows :
(a) Acidic buffer consists of a weak acid and its salt with strong base in a fixed proportion
e.g.

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

(b)

p H

of the buffer solution is not affected by dilution because ratio under the logarithmic terms remains unchanged.
(d) Glycine + glycine hydrochloride is an example of basic buffer.

Q. Which of the following statement is correct?

Acidic buffer consist of a strong acid and its salt with weak base in a fixed proportion.

$p H$ of the buffer solution changes by dilution.

Natural buffer are the solution of salts of weak acid and weak base.

Glycine + glycine hydrochloride is an example of acidic buffer.