Question

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 :

• A. Both Statement I and Statement II are true
• B. Both Statement I and Statement II are false
• C. Statement I is true but Statement II is false
• D. Statement I is false but Statement II is true

Answer 1

The Correct Option is C

Let's analyze each statement to determine their truthfulness: 

1. 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.
2. 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.

Answer 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