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Chemistry Question on Hydrogen Bonding

Hydrogen peroxide is prepared in the laboratory by:

A

passing CO2C{{O}_{2}} into BaO2Ba{{O}_{2}}

B

adding MnO2Mn{{O}_{2}} to dil. H2SO4{{H}_{2}}S{{O}_{4}}

C

adding Na2O2N{{a}_{2}}{{O}_{2}} to cold water

D

adding PbO2Pb{{O}_{2}} into KMnO4KMn{{O}_{4}} .

Answer

passing CO2C{{O}_{2}} into BaO2Ba{{O}_{2}}

Explanation

Solution

Hydrogen peroxide is prepared by the action of CO2C{{O}_{2}} on barium peroxide (BaO2)(Ba{{O}_{2}}) . BaO2(Barium peroxide)+CO2+H2O→BaCO3(Barium carbonate)\underset{\text{(Barium peroxide)}}{BaO_2} + CO_2 + H_2O \to \underset{\text{(Barium carbonate)}}{BaCO_3} +H2O2(Hydrogen peroxide) + \underset{\text{(Hydrogen peroxide)}}{H_2O_2}