Question

Given the values of reduction potential, circle which is more reducing at pH 0: ascorbic acid or succinic acid.

A) Ascorbic acid
B) Succinic acid
C) Both are equally reducing
D) None of the above

Answer 1

Without the reduction potential of succinic acid, we cannot compare it to ascorbic acid. However, ascorbic acid with a reduction potential of -0.50V is a strong reducing agent at pH 0.

Step-by-step explanation:

To determine which substance is more reducing at pH 0, we consider their reduction potential. Ascorbic acid is known for being a strong reducing agent, and it reduces to dehydroascorbic acid upon oxidation. A compound with a negative value of reduction potential serves as a better electron donor compared to hydrogen, which is set at zero. In the information provided, ascorbic acid has a reduction potential of -0.50V, indicating that it is indeed a very strong reducing agent. Unfortunately, the reduction potential value for succinic acid is not provided, making a direct comparison impossible. Based on available information, we can only conclude that ascorbic acid is a strong reducer due to its negative reduction potential value.