COMEDK2015ChemistryElectrochemistry
Strongest reducing agent among the following is I. Na ⁺+e⁻ Na (s) E^ =-2.71 ~V II. Al ³⁺+3 e⁻ Al (s) E^ =-1.66 ~V III. F ₂(g)+2 e⁻ 2 ~F ⁻ E^ =+2.87 ~V IV. 2 H ₂ O +2 e⁻ H ₂(g)+2 OH ⁻(a q); E^ =-0.83 ~V
Options
- Aonly IV
- Bonly III
- Conly II
- Donly I
Correct answer
D. only I
Step-by-step solution
Lower the E^ value (more negative), stronger is the reducing agent. Na ⁺ is the strongest reducing agent.