Question:
Consider the reactions
(A) $H _{2} O _{2}+2 HI \longrightarrow I _{2}+2 H _{2} O$
(B) $HOCl + H _{2} O _{2} \longrightarrow H _{3} O ^{+}+ Cl ^{-}+ O _{2}$
Which of the following statements is correct about $H _{2} O _{2}$ with reference to these reactions? Hydrogen peroxide is ____
Consider the reactions
(A) $H _{2} O _{2}+2 HI \longrightarrow I _{2}+2 H _{2} O$
(B) $HOCl + H _{2} O _{2} \longrightarrow H _{3} O ^{+}+ Cl ^{-}+ O _{2}$
Which of the following statements is correct about $H _{2} O _{2}$ with reference to these reactions? Hydrogen peroxide is ____
Updated On: Jan 30, 2025
- an oxidising agent in both (A) and (B)
- an oxidising agent in (A) and reducing agent in (B)
- a reducing agent in (A) and oxidising agent in (B)
- a reducing agent in both (A) and (B)
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The Correct Option is B
Solution and Explanation
Answer (b) an oxidising agent in (A) and reducing agent in (B)
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Concepts Used:
Hydrogen Peroxide
Hydrogen peroxide is a chemical element including hydrogen and oxygen. Anhydrous hydrogen peroxide is a colorless, sugary liquid that breaks down quickly into oxygen and water. The chemical formula for hydrogen peroxide [H2O2] is H—O—O—H, here, each dash represents a single covalent link. Especially, each bond has a pair of mutual electrons, one from each of the atoms at the bond’s ends. The polar bonds are H—O bonds, but this is not the polar one - O—O bonds.
Physical Properties:
- In its pure state, hydrogen peroxide is an entirely transparent colorless liquid with a nitric acid-like odor.
- The consistency of hydrogen peroxide is far better than that of water. It has a density of about 40% that of water.
Chemical Properties:
- It dissolves in water, which after getting mixed with water produces a homogenous solution.
- Naturally acidic in nature.
- The oxidizing agent H2O2 is quite powerful. As a derivative, it gives up one oxygen atom and forms water.