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Hydrogen peroxide is prepared in the lab...

Hydrogen peroxide is prepared in the laboratory by

A

Adding `MnO_2` , to dil. `H_2SO_4`

B

Passing `CO_2` into `BaO_2`

C

Adding `Na_2O_2` to cold water

D

Adding `PbO_2` to `KMnO_4`

Text Solution

Verified by Experts

The correct Answer is:
B
`CO_2 + H_2O to H_2CO_3
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