Equilibrium Question 422

Question: To obtain a buffer which should be suitable for maintaining a $ pH $ of about $ 4-5, $ we need to have in solution, a mixture of

Options:

A) A strong base + its salt with a weak acid

B) A weak base + its salt with a strong acid

C) A strong acid + its salt with a weak base

D) A weak acid + its salt with a strong base

Show Answer

Answer:

Correct Answer: D

Solution:

A weak acid and its salt with a strong base maintain pH 4 - 5



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