Redox Reaction

Redox Reaction

Edited By Team Careers360 | Updated on Aug 14, 2023 04:40 PM IST

Introduction: There is always reduction where there is oxidation — chemistry is fundamentally a study of redox systems.
Chemistry deals with different types of matter and transforming one kind of matter into another. The various reactions are used to convert matter from one type to another. Redox Reactions are one of the most common types of reactions.

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A redox reaction is a reaction that comprises oxidation and reduction. When a redox reaction occurs, both oxidation and reduction reactions take place simultaneously.

Redox reactions are involved in a wide range of physical and biological phenomena. Pharmaceutical, natural, industrial, metallurgical, and agricultural industries utilise redox reactions.

The significance of redox reactions can be seen in the fact that redox processes include the combustion of various types of fuels for domestic, transportation, and other commercial purposes, electrochemical processes for the extraction of highly reactive metals and nonmetals, the manufacture of chemical compounds such as caustic soda, the operation of dry and wet batteries, and metal corrosion. Environmental challenges such as the Hydrogen Economy (the use of liquid hydrogen as a fuel) and the formation of the 'Ozone Hole' have surfaced as part of the redox phenomenon.

List of topics according to NCERT and JEE Main/NEET syllabus:

Oxidation and reduction reactions
Redox reaction examples
Redox reactions in terms of electron transfer reactions
Competitive electron transfer reactions
Oxidation number
Types of redox reactions
Balancing of redox reactions
Redox reactions as the basis for titrations
Limitations of the concept of oxidation number
Redox reactions and electrode processes.

Important concepts and Laws:

Redox Reactions in Reference With Electron Transfer Reactions
Different Types of Redox Reactions

Combination Reaction
Decomposition Reaction
Displacement Reaction
Disproportionation Reaction

Oxidation reaction
Reduction reaction
Oxidation Number
Balancing a Redox Reaction
Redox Reactions as the Basis for Titrations
Application of Redox Reaction

Importance of Redox Reaction class 11:

Chemistry is concerned with different types of matter and transforming one kind into another. Value transformation from one type to another occurs via various kinds of reactions. Redox Reactions are an essential type of such reaction.

Class 11 Redox Reaction can assist pupils in understanding the types of questions given in competitive exams. These crucial questions assist students in prioritising topics as they prepare for exams.

Although, in the JEE Examination, there are just one to two questions from Redox Reaction.

However, it is still very important.

Redox reactions are such a topic whose application part is visible in our daily life. This topic is important from JEE Main/ JEE Advance Point of view as a few questions can be asked directly from this topic. Also, this concept is used in other topics. Thus it is important that you understand this topic in totality with clarity.

NCERT Solutions Subject wise link:

NCERT Exemplar Solutions Subject wise link:

Frequently Asked Questions (FAQs)

1. Describe the various types of redox reactions.

Reactions involving combinations (Combination reactions)
Reactions of decomposition (Decomposition reactions)
Reactions to displacement (Displacement reactions)
Reactions of disproportionation (Disproportionation reactions )

2. Using fluorine, displacement reactions of Cl, Br, and I are rarely performed in aqueous solutions. Explain why.

Because fluorine is a reactive element, it replaces chloride, bromide, and iodide ions in solution, and it reacts with water, displacing oxygen.

3. What happens to hydrogen when it is oxidised?

Because of the partial loss of electrons, hydrogen gets oxidised. The hydrogen atoms in water have less electron density near them than they had in the H 2 molecule, even though the loss is not complete enough to create ions. Because of a partial gain of electrons, the oxygen is decreased.

4. Give one example of the Redox reaction.

Copper oxide and magnesium react to form copper and magnesium oxide.

5. Define oxidation, and what is an example of it?

Originally, the term "oxidation" was used to describe reactions in which an element reacts with oxygen. Example: The oxidation of magnesium occurs in the reaction between magnesium metal and oxygen to generate magnesium oxide.

6. What happens to an element's oxidation number during oxidation?

During oxidation, the oxidation number rises. When an element's oxidation number changes from 0 to 1, it is oxidised.