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H(2)O(2) can act as...

`H_(2)O_(2)` can act as

A

Oxidising agent

B

Reducing agent

C

Bleaching agent

D

All of these

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question "H₂O₂ can act as," we will analyze the properties and reactions of hydrogen peroxide (H₂O₂) to determine its roles. ### Step-by-Step Solution: 1. **Understanding Hydrogen Peroxide (H₂O₂)**: - Hydrogen peroxide is a chemical compound with the formula H₂O₂. It is known for its strong oxidizing properties. 2. **Oxidizing Agent**: - H₂O₂ can act as an oxidizing agent. This means it can accept electrons from other substances, causing those substances to be oxidized. - Example Reaction: When H₂O₂ reacts with lead(II) sulfide (PbS) in an acidic medium, it oxidizes sulfur from an oxidation state of -2 in PbS to +6 in lead(II) sulfate (PbSO₄). 3. **Reducing Agent**: - H₂O₂ can also act as a reducing agent. This means it can donate electrons to other substances, causing those substances to be reduced. - Example Reaction: When H₂O₂ reacts with lead(IV) oxide (PbO₂), it reduces lead from an oxidation state of +4 in PbO₂ to +2 in lead(II) oxide (PbO). 4. **Bleaching Agent**: - H₂O₂ is known for its bleaching properties. It can oxidize colored compounds, resulting in the formation of colorless compounds. - Example: When H₂O₂ is used to bleach hair or fabrics, it oxidizes the colored pigments, leading to a lighter color. 5. **Conclusion**: - Based on the above properties, H₂O₂ can act as an oxidizing agent, a reducing agent, and a bleaching agent. Therefore, the correct answer to the question is that H₂O₂ can act as all of these. ### Final Answer: H₂O₂ can act as an oxidizing agent, reducing agent, and bleaching agent. Thus, the correct option is **all of these**. ---
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Knowledge Check

  • In which of the following reactions H_(2)O_(2) acts as a reducing agent ?

    A
    `H_(2)O_((l)) + NH_(3(aq)) hArr OH_((aq))^(-) + NH_(4(aq))^(+)`
    B
    `H_(2)O_((l)) + H_(2)S_((aq)) hArr H_(3)O_((aq))^(+) + HS_((aq))^(-)`
    C
    `H_(2)O_((l)) + H_(2)O_((l)) hArr H_(3)O_((aq))^(+) + OH_((aq))^(-)`
    D
    `H_((aq))^(+) + OH_((aq))^(-) hArr H_(2)O_((l))`