Chapter 20, Problem 49E

Interpretation Introduction

Interpretation: The standard reduction potential of ${\text{Eu}}^{2+}$ is given. The substance that is capable of reducing ${\text{Eu}}^{3+}$ to ${\text{Eu}}^{2+}$ is to be identified from the given list.

Concept introduction: Reduction potential indicates the ability of a substance to gain electron and undergo reduction.

To determine: The substances that are capable of reducing ${\text{Eu}}^{3+}$ to ${\text{Eu}}^{2+}$ from the given list.