Which of the following can form an acidic buffer?
Correct answer: D. All of these
- A. Acetic acid / sodium acetate
- B. Phosphoric acid / potassium dihydrogen phosphate
- C. Formic acid / sodium formate
- D. All of these
Explanation
An acidic buffer is a mixture of a weak acid and its conjugate base (usually from a salt). All three options consist of a weak acid and its corresponding salt, so all of them will form acidic buffer solutions.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
About Acids, Bases and Salts
Acid and base behaviour is explained through the Bronsted-Lowry transfer of protons and the Lewis donation or acceptance of electron pairs. The topic includes pH, pOH, ionisation and water equilibrium, plus salt formation and hydrolysis, where a salt solution may become acidic, basic or neutral.
Practise Acids, Bases and Salts
314 free Acids, Bases and Salts MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemistry questions like this
Chemistry is on 14 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Acids, Bases and Salts questions
The aqueous solution of which of the following is acidic?
A salt of a weak acid & a weak base is:
In the case of an acidic buffer solution, the concentration of the conjugate base is prominently supplied by the:
Which of the following have almost the same pH?
The aqueous solution of which of the following can form a buffer solution?
Which one is the weakest base among these?