Question

In aqueous solution $E{u}^{2+}$ ion act as :

• A. An oxidizing agent
• B. A reducing agent
• C. Either A or B
• D. None of these

Answer 1

Answer: (B)

A reducing agent

Eu²⁺ is formed by losing the two s electrons and its f⁷ configuration accounts for the formation of this ion. However, Eu²⁺is a strong reducing agent changing to the common +3 state, by losing the one electron in the f-orbitals.

Hence, option B is correct.