In the preparation of H_2O_2 from BaO_2 ,phosphoric acid is preferred to sulphuric acid because

In the preparation of H_2O_2 from BaO_2 ,phosphoric acid is preferred

1.	In the preparation of H_2O_2 from BaO_2 ,phosphoric acid is preferred to sulphuric acid because
Answer» The soluble IMPURITIES like barium persulphate CATALYSE the decomposition of `H_2O_2` `H_3PO_4` increases the STABILITY of `H_2O_2` The `BaSO_4`LAYER prevents further reaction between `BaO_2` and dil `H_2SO_4` all the above Answer :D