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:

Energy Content

The amount of energy stored in a substance or system, which can be released or utilized through various processes.

Lipid

Substance composed principally of carbon, oxygen, and hydrogen; contains a lower ratio of oxygen to carbon and is less polar than carbohydrates; generally soluble in nonpolar solvents.

Carbohydrate

Monosaccharide (simple sugar) or the organic molecules composed of monosaccharides bound together by chemical bonds—for example, glycogen. For each carbon atom in the molecule, there are typically one oxygen molecule and two hydrogen molecules.

Subcutaneous Fat

The layer of fat located under the skin, serving as insulation to regulate body temperature and as an energy reserve.