Question

$RbO_2$ is

• A. Peroxide and paramagnetic
• B. Peroxide and magnetic
• C. Super oxide and paramagnetic
• D. Super oxide and diamagnetic

Answer 1

Answer: (C)

Super oxide and paramagnetic

Answer 2

$RbO_2$ means $Rb^+ O^-_2$ and ion. $O^-_2$ ion is super oxide ion. It has 17 electrons and is paramagnetic.

So, the correct answer is (C): Super oxide and paramagnetic