Question

Phosphoric acid is preferred to sulpheric acid in the preparation
of H2O2 barium peroxide

Answer 1

Answer:

Answer. In preparation of hydrogen peroxide(H2O2) and sulphuric acid, the use of sulphuric acid has a disadvantage as it catalyses the decomposition of H2O2formed. In place of H2O2, weak acids like ortho phosphoric acid, carbonic acid are preferred