Question

Which among the following will give hydrogen peroxide upon reaction with dil.sulphuric acid?
(A) MnO2
(B) BaO2
(C) PbO2
(D) Cao
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Answer 1

Answer:

a)mno2 will answer because it mences magnesium cheak answer

Explanation:

Dilute sulfuric acid reacts with metals via a single displacement reaction as with other typical acids, producing hydrogen gas and salts (the metal sulfate). It attacks reactive metals (metals at positions above copper in the reactivity series) such as iron, aluminium, zinc, manganese, magnesium, and nickel.

mark as branlist

Answer 2

The compound that will give hydrogen peroxide upon reaction with dilute sulphuric acid is:

(B) BaO2

- To obtain hydrogen peroxide, we first acidify the barium peroxide (BaO2).

- Then we remove the excess water by evaporation under reduced pressure to get hydrogen peroxide.

- The balanced chemical reaction can be given as follows:

BaO2.8H2O (s) + H2SO4 (aq) → BaSO4 (s) + H2O2 (aq) + 8 H2O (l)