Given below are two statements.
Statement I : Hydrogen peroxide can act as an oxidizing agent in both acidic and basic conditions.
Statement II : Density of hydrogen peroxide at 298 K is lower than that of \(D_2O\).
In the light of the above statements, choose the correct answer from the options given below :
Statement I : Hydrogen peroxide can act as an oxidizing agent in both acidic and basic conditions.
Statement II : Density of hydrogen peroxide at 298 K is lower than that of \(D_2O\).
In the light of the above statements, choose the correct answer from the options given below :
- Both Statement I and Statement II are true
- Both Statement I and Statement II are false
- Statement I is true but Statement II is false
- Statement I is false but Statement II is true
The Correct Option is C
Approach Solution - 1
Let's analyze each statement to determine their truthfulness:
- Statement I: Hydrogen peroxide can act as an oxidizing agent in both acidic and basic conditions.
- Hydrogen peroxide (\(\text{H}_2\text{O}_2\)) is known to be an excellent oxidizing agent. It can function as an oxidizing agent in both acidic and basic environments. In acidic conditions, it converts into water (\(\text{H}_2\text{O}\)), releasing oxygen (\(\text{O}_2\)). Meanwhile, in basic media, it can still behave as an oxidizing agent, often producing \(\text{OH}^-\) ions. Thus, statement I is true.
- Statement II: Density of hydrogen peroxide at 298 K is lower than that of \(D_2O\).
- The density of hydrogen peroxide (\(\text{H}_2\text{O}_2\)) at 298 K is generally around 1.448 g/cm\(^3\). Deuterium oxide (\(D_2O\), often referred to as heavy water) is denser than regular water, with a density of approximately 1.107 g/cm\(^3\) at the same temperature. Therefore, the density of \(\text{H}_2\text{O}_2\) is higher than that of \(D_2O\). Statement II is false.
Thus, the correct answer is: Statement I is true but Statement II is false.
Approach Solution -2
Density of \(H_2O_2\) is more as compared to \(D_2O\)
\(dH_2O_2 = 1.44 \;g/cc\)
\(dD_2O = 1.106 \;g/cc\)
And hydrogen peroxide acts as an oxidising as well as reducing agent in both acidic and basic medium.
∴ Statement I is correct.
The correct answer is (C): Statement I is true but Statement II is false
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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.