Acidic buffer consists of:
Correct answer: B. Weak acid and salt of it with a strong base
- A. Strong acid and salt of it with a weak base
- B. Weak acid and salt of it with a strong base
- C. Strong acid and salt of it with a strong base
- D. Weak acid and salt of it with a weak base
Explanation
The formation of a buffer solution requires a weak base OR a weak acid with its salt with a strong acid OR a strong base respectively, which is only stated in option B. A and C are incorrect because strong acid with its salt does not form a buffer solution; weak acids with its salt forms a buffer solution. D is theoretically not possible because a weak acid can not react with a weak base to form a salt.
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.