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How is D(2)O(2) prepared?...

How is `D_(2)O_(2)` prepared?

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`D_(2)` is prepared by distillation of potassium persulphate `(K_(2)S_(2)O_(8))` with `D_(2)O` .
`underset("Pot. Persuphate")(K_(2)S_(2)O_(8))+ 2D_(2)O overset("Distil")to D_(2)O_(2) + 2KDSO_(4)`
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