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The presence of water is avoided in the ...

The presence of water is avoided in the preparation of `H_(2)O_(2)` from `Na_(2)O_(2)`. Assign reason.

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Water present during the reaction, reacts with `Na_2O_2` to form NaOH which tends to decompose `H_2 O_2` .
`Na_2 O_2 + 2H_2 O to H_2 O_2 + 2NaOH`
`2H_2 O_2 overset(NaOH)to 2H_2 O + O_2`
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