As per standard reduction potential values, which is the strongest reducing agent among the given elements?
Show Hint
- Rb
- Sr
- Na
- Mg
The Correct Option is A
Approach Solution - 1
Here are the standard reduction potentials for the given elements:
- \( Rb \): \( -2.93 \, {V} \)
- \( Sr \): \( -2.89 \, {V} \)
- \( Na \): \( -2.71 \, {V} \)
- \( Mg \): \( -2.37 \, {V} \)
The element with the most negative reduction potential is \( Rb \), indicating that it is the strongest reducing agent among the given options.
Thus, the correct answer is \( Rb \).
Approach Solution -2
To determine the strongest reducing agent among the given elements, we should consider the standard reduction potential (E°) values. In general, a more negative E° value indicates a stronger reducing agent. The standard reduction potentials for the elements involved are given as follows:
- Rb: -2.92 V
- Sr: -2.89 V
- Na: -2.71 V
- Mg: -2.37 V
The standard reduction potential helps predict the tendency of a substance to gain electrons. A negative value signifies a strong inclination to donate electrons, making it a powerful reducing agent. Among the elements:
- Rubidium (Rb) has the most negative reduction potential, -2.92 V, indicating it is the strongest reducing agent.
Therefore, based on the standard reduction potential values, Rb is the strongest reducing agent among the options.
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