Question

Peroxide effect can be checked by the addition of sufficient amount of (a) monophenyl amine (b) diphenyl amine (c) triphenyl amine (d) pentaphenyl amine

Short answer

Diphenyl amine is used to check the peroxide effect.

Step-by-step solution

Understanding the Problem

The problem requires us to identify which compound can be used to check or test for the presence of a peroxide effect. This is often related to verifying oxidative processes.

Reviewing Potential Options

Each of the given options is a variant of amine with a different number of phenyl groups: monophenyl, diphenyl, triphenyl, and pentaphenyl. We need to determine which one specifically interacts with peroxides to produce a measurable effect.

Recognizing Common Laboratory Practices

In a laboratory context, diphenyl amine (option b) is commonly used as an indicator or reagent to detect the presence of peroxide. It changes color when it reacts with peroxides, allowing for visual confirmation.

Analyzing Option Suitability

Given the information in previous steps, diphenyl amine's ability to indicate peroxide presence with a color change makes it well-suited for checking the peroxide effect.

Key concepts

Diphenyl Amine

Diphenyl amine is a chemical compound that plays a crucial role in detecting the presence of peroxides. This compound is formed by two phenyl groups attached to an amine group. Its importance in chemistry, especially in laboratory settings, is underscored by its ability to serve as an indicator. When diphenyl amine comes into contact with peroxides, a chemical reaction occurs that results in a visible color change.
This distinct color transformation is what makes diphenyl amine a valuable tool for scientists, as it provides a clear, visual confirmation of the peroxide's presence.
In essence, the use of diphenyl amine simplifies the process of identifying peroxides, lending to more efficient laboratory practices.

Oxidative Processes

Oxidative processes refer to chemical reactions where a substance loses electrons, often accompanied by the addition of oxygen or the removal of hydrogen. These reactions are important in a variety of scientific fields, including chemistry and biology.
In relation to peroxides, oxidative processes can involve the transfer of oxygen atoms from peroxide compounds to other substances. This ability to generate oxygen makes peroxides powerful oxidizing agents, capable of causing other chemicals to undergo oxidation.
During laboratory tests for peroxide presence, oxidative processes are the primary reactions being verified. They signify that a chemical change has occurred, further denoting the presence of reactive oxygen species within a sample.

Chemical Indicators

Chemical indicators are substances used to give a visual sign, typically a color change, when a chemical reaction takes place. They are essential for qualitative analysis in laboratories as they provide immediate and clear feedback on the presence of specific chemicals.
Diphenyl amine acts as a chemical indicator specifically for peroxide detection. When diphenyl amine reacts with peroxide, the resulting color change alerts the scientist to the peroxide's presence.
This ease of detection makes chemical indicators like diphenyl amine indispensable in both academic research and industrial applications. They simplify complex processes into straightforward observations, promoting accuracy and efficiency in experimental procedures.

Reaction Mechanism

A reaction mechanism is a step-by-step sequence of elementary reactions by which a chemical change occurs. Understanding these mechanisms is key to grasping how chemical processes unfold.
In the case of diphenyl amine interacting with peroxides, the reaction mechanism involves the transfer of oxygen from the peroxide to the diphenyl amine. This interaction triggers a structural change in the diphenyl amine molecule, leading to a color shift.
This mechanism underscores the fundamental process of the peroxide effect test: a clear, visible change resulting from specific molecular interactions.
By outlining the steps and changes at the molecular level, reaction mechanisms provide a detailed understanding of how and why a certain reaction outcome is achieved, aiding in the prediction and control of chemical behavior.