Question

Which of the following acts as a stabilizer in the decomposition of H₂O₂?

• A. Urea
• B. Alkali
• C. Glass
• D. Dust

Answer 1

The Correct Option is A

Hydrogen peroxide (\(H_2O_2\)) is a chemical compound that can decompose into water and oxygen. This decomposition is often undesired in scenarios where \(H_2O_2\) is used as a bleaching agent or antiseptic, as it reduces its effectiveness. Therefore, stabilizers are used to prevent or slow down this decomposition.

The question asks which substance acts as a stabilizer in the decomposition of hydrogen peroxide. Let's examine the options provided:

1. Urea: This compound is commonly used as a stabilizer for hydrogen peroxide. It helps in slowing down the decomposition by forming a loose complex with \(H_2O_2\), which inhibits the catalytic decomposition pathway.
2. Alkali: Generally, alkalis increase the rate of decomposition of hydrogen peroxide. Therefore, they do not stabilize it.
3. Glass: While glass containers are often used to store hydrogen peroxide, glass itself does not chemically stabilize the compound. Instead, glass merely serves as a non-reactive, inert container.
4. Dust: Dust often contains catalytic impurities that can indeed accelerate the decomposition of \(H_2O_2\), making it an unsuitable choice as a stabilizer.

Based on this analysis, Urea acts as a stabilizer in the decomposition of \(H_2O_2\). Thus, the correct answer is Urea.