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Lithium forms monoxide with oxygen whereas sodium forms peroxide with oxygen. Why? |
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Answer» Solution :The fact that a small cation can stabilize a small anion and a large cation can stabilize a large anion EXPLAINS the formation and stability of the OXIDES (ii) The size of Lition is very small and it has a strong positive field AROUND it. It can COMBINE with only small anion, 02-ion, resulting in the formation of monoxide Li,O. (iii) The Nation is a larger cation and has a weak positive field around it and can stabilize a BIGGER peroxide ion, `O_(2)^(2)`or `[-O-O-]^(2-)` resulting in the formation of peroxide `Na_(2)O_(2)` |
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