First slide

Chemical Properties

Question

Which one of the following super oxide is most stable

Moderate

A

RbO₂
B

KO₂
C

CsO₂
D

NaO₂

Solution

MO₂(super oxides) are paramagnetic with one unpaired electron in pi anti bonding molecular orbital;
MO₂(super oxides) are yellow (or) orange in colour
Lithium forms monoxides
Sodium with limited oxygen forms monoxide and with excess oxygen forms peroxide;
K, Rb and Cs form super oxides. Stability of super oxides increases with increase in cation size. This fact is explained by Lattice enthalpy effects.

Get Instant Solutions

When in doubt download our app. Now available Google Play Store- Doubts App

Recieve an sms with download link

Doubts App

OR

SCAN ME

Doubts App

Doubts App