Question

Identify the pair of ions which act as good reducing agents.

• A. \(Ce^{4+}, Yb^{2+}\)
• B. \(Ce^{4+}, Tb^{4+}\)
• C. \(Ce^{3+}, Tb^{2+}\)
• D. \(Eu^{2+}, Yb^{2+}\)

Hint:

Among lanthanoids, Eu$^{2+}$ and Yb$^{2+}$ are strong reducing agents because they readily convert into the more stable +3 state.

Answer 1

The Correct Option is D