If the Following Two Reactions Were Coupled, What Would Be $\circ$

question 17

Multiple Choice

If the following two reactions were coupled, what would be the oxidizing agent for the spontaneous reaction? NAD⁺ + H⁺ + 2e^-
NADH E ^$\circ$ ' = -0.32 V
Acetaldehyde + 2H⁺ + 2e^-
ethanol E ^$\circ$ ' = -0.20 V

• A)NAD⁺
• B)acetaldehyde
• C)NADH
• D)ethanol
• E)H⁺

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