Which One of the Following Combinations Cannot Function as a Buffer

question 132

Multiple Choice

Which one of the following combinations cannot function as a buffer solution

• A) HCN and KCN
• B) NH₃ and (NH₄)₂SO₄
• C) HNO₃ and NaNO₃
• D) HF and NaF
• E) HNO₂ and NaNO₂

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Definitions:

Tunicates

Chordates belonging to subphylum Urochordata; sea squirts.

Tadpoles

The aquatic larval stage of amphibians, especially frogs and toads, characterized by gills, a tail, and a later transition to the adult form.

Tunic

In a biological context, a fibrous or cellular covering layer, such as that surrounding certain seeds or the body of sea squirts and other invertebrates.

Adult Tunicates

Marine invertebrates that are members of the subphylum Tunicata; they are sessile as adults and have a sac-like body covered with a tunic.