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In lab H(2)O(2) is prepared by...

In lab `H_(2)O_(2)` is prepared by

A

Cold `H_(2)SO_(4)+BaO_(2)`

B

`HCl+BaO_(2)`

C

Conc. `H_(2)SO_(4)+Na_(2)O_(2)`

D

`H_(2)+O_(2)`

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The correct Answer is:
A
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