Q7 of 76 Page 114

The oxide that gives H2O2 on treatment with dilute H2SO4 is —

Barium peroxide (BaO2) as we can get from its name, has a per-oxy linkage in it. Due to which its treatment with H2SO4 gives H2O2 . Whereas, the other oxides don’t have the per-oxy linkage due to which hydrogen peroxide cannot be produced.



Whereas, all the other oxides give only water instead of hydrogen peroxide due to the absence of the per-oxy linkage in them.

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(A) H2O2 + 2HI → I2 + 2H2O


(B) HOCl + H2O2→ H3 O+ + Cl- + O2


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Which of the following equations depict the oxidising nature of H2 O2?

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Which of the following equation depicts reducing nature of H2O2?