Question

Sesquoxides is said to be double oxides of:

• A. oxides, peroxide
• B. oxide, superoxide
• C. oxide, disuperoxide
• D. peroxide, superoxide

Answer 1

Answer: (D)

Alkali metal sesquioxides are exceptions of general sesquioxides. In these both peroxide $\left(O_2^{-}\right)$ and superoxide $\left(O_2^{2-}\right)$ ions are obtained.