Question

Which of the following is true for Potassium Sesquioxide?

• A. It is obtained when oxygen is passed through liquid ammonia containing potassium.
• B. It exists as $\left(2K^{+}\right)(O_2{)}^{2-}$
• C. It is prepared by burning potassium in excess of oxygen free from moisture
• D. None of the above

Answer 1

The correct option is A It is obtained when oxygen is passed through liquid ammonia containing potassium.

Potassium Sesquioxide:
It is obtained when oxygen is passed through liquid ammonia containing potassium.
$4K\text{(dissolved in liquid}N{H}_3)\stackrel{3O_2}{⟶}2K_2{O}_3$

$K_2{O}_3$ exists as $\left(K^{+}{)}_4\right(O_2^{-}{)}_2\left(O_2^{2-}\right)$