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'X' is an oxide of potassium. If 'X' is ...

 'X' is an oxide of potassium. If 'X' is coloured and paramagnetic, what are the hydrolysis products of X? 

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Superoxides are paramagnetic and coloured. Thus .X. is potassium superoxide, `KO_(2)` Superoxides of alkali metals are hydrolysed by water to give `H_(2)O_(2)` and oxygen gas.
`2KO_(2)+2H_(2)Orarr 2KOH+H_(2)O_(2)+O_(2)`
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