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| 1. |
On heating in excess supply of air, K, Rb and Cs form superoxides rather than oxides and peroxides? |
| Answer» SOLUTION :`K^(+)`,`Rb^(+)` and `Cs^(+)` are larger cations which stabilize`O_(2)^(-)` (superoxide) the larger ANION. Thus when `MO_(2)` is formed, it is stabilized hence FORMATION is preferred to OXIDES and PEROXIDES. | |