Question

Assertion: Anhydrous $~Ba{{O}_{2}}~$ is used for preparing ${{H}_{2}}{{O}_{2}}$
Reason: Hydrated $~Ba{{O}_{2}}~$ is not available
A.If both assertion and reason are true and the reason is correct explanation of the assertion
B.If both assertion and reason are true and the reason is not correct explanation of the assertion
C.If assertion is true but reason is false
D.If both assertion and reason are false
E.If assertion is false but reason is true

Answer 1

In the preparation of ${{H}_{2}}{{O}_{2}}$ if we use anhydrous $~Ba{{O}_{2}}~$then the reaction will not proceed because it will form a layer of$BaSO4$, as the preparation also requires $H_2SO_4$ as one of the reactants.
Hydrogen peroxide is an example of mild antiseptic used on the skin to prevent infection of minor cuts, scrapes, and burns.

Complete answer:
-Hydrogen peroxide is a chemical compound which has the formula ${{H}_{2}}{{O}_{2}}$ . In the pure form the Hydrogen peroxide is a very pale blue liquid, has viscosity slightly more than water. Hydrogen peroxide is the simplest kind of peroxide, which is the compound having an oxygen–oxygen single bond. It has an application of a bleaching agent, oxidizer, and antiseptic. Concentrated hydrogen peroxide, also called "high-test peroxide", is a very reactive species of oxygen and has been used as a propellant in rocket industries. Hydrogen peroxide is very unstable hence, it decomposes slowly when exposed to light. Due to its instability, hydrogen peroxide is generally stored along with a stabilizer in a dark coloured bottle which contains a weakly acidic solution, like solution of acetic acid, or any weak acid for that matter.Hydrogen peroxide is also found in living organisms including the human being. The class of Enzymes that decompose or use hydrogen peroxide are known as peroxidases.
-Consider the assertion given in the question, anhydrous $~Ba{{O}_{2}}~$ is not used in the process of preparation of ${{H}_{2}}{{O}_{2}}$ , instead, hydrated $~Ba{{O}_{2}}~$ is used in the preparation of hydrogen peroxide along with $H_2SO_4$. So the assertion given in the question is incorrect, as hydrated $~Ba{{O}_{2}}~$ is used instead of anhydrous $~Ba{{O}_{2}}~$ , in preparation of ${{H}_{2}}{{O}_{2}}$.
-We know that, if we use dehydrated $~Ba{{O}_{2}}~$ then a layer of $BaSO4$ will be formed around it, which will prevent the reaction from taking place.
$Ba{{O}_{2}}.8{{H}_{2}}O\left( s \right)\text{ }+\text{ }{{H}_{2}}S{{O}_{4}}\left( aq \right)\text{ }\to \text{ }BaS{{O}_{4}}\left( s \right)\text{ }+\text{ }{{H}_{2}}{{O}_{2}}\left( aq \right)\text{ }+\text{ }8{{H}_{2}}O\left( l \right)$
-So, the given reason is also incorrect, and it doesn’t support the assertion in any way.
So the correct answer would be option D.

Note:
-The structure of hydrogen peroxide has an oxygen oxygen single bond and those oxygens have two hydrogen atoms attached to them. The instability of hydrogen peroxide is because of the lone pair of electrons present in each of the oxygen, which are attached to one another.
-An alternate method for preparation of hydrogen peroxide, industrially, is by hydrolysis of ammonium persulfate, which is itself obtained by the electrolysis of a solution of ammonium bisulfate.