The products obtained from a reaction of hydrogen peroxide and acidified potassium permanganate are
- \(Mn^{4+}, H_2O \;only\)
- \(Mn^{2+}, H_2O \;only\)
- \(Mn^{4+}, H_2O, O_2 \;only\)
- \(Mn^{2+}, H_2O, O_2 \;only\)
The Correct Option is D
Solution and Explanation
\(2MnO^-_4−+6H^++5H_2O_2 → 2Mn^{2+}+8H_2O+5O_2\)
This reaction shows reducing action of \(H_2O_2\) in acidic medium.
The products formed are \(Mn^{2+}\), \(H_2O\) and \(O_2\).
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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.