Basic buffer solution is:
Correct answer: D. NH4OH/NH4CI.
- A. HF/NaF.
- B. H2CO3 /Na2CO3
- C. (COOH)2 /(COONa)2
- D. NH4OH/NH4CI.
Explanation
Basic buffer is the mixture of weak base and salt of it with strong acid. NH4OH is weak base and NH4Cl is salt of strong acid (HCI).
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About Chemical Equilibrium
Reversible reactions reach dynamic equilibrium when forward and reverse rates become equal, and Le Chatelier's principle predicts the effect of changing concentration, pressure or temperature. The chapter also covers solubility product, the common ion effect, buffer action and the conditions used in Haber's process, with equilibrium shifts distinguished from changes in the equilibrium constant.
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