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NCERT Textbook - Redox Reactions | NCERT Textbooks (Class 6 to Class 12) - CTET & State TET PDF Download

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FAQs on NCERT Textbook - Redox Reactions - NCERT Textbooks (Class 6 to Class 12) - CTET & State TET

1. What is a redox reaction?
Ans. A redox reaction, also known as an oxidation-reduction reaction, is a chemical reaction that involves a transfer of electrons between two species. One species undergoes oxidation, losing electrons, while the other undergoes reduction, gaining those electrons.
2. How do you identify if a reaction is a redox reaction?
Ans. To identify if a reaction is a redox reaction, you can look for changes in the oxidation states of the atoms involved. If the oxidation state of an atom increases, it is undergoing oxidation, and if it decreases, it is undergoing reduction. If there is a change in the oxidation states, it indicates a redox reaction.
3. What is meant by oxidation and reduction in a redox reaction?
Ans. In a redox reaction, oxidation refers to the process of an atom or molecule losing electrons, resulting in an increase in its oxidation state. Reduction, on the other hand, refers to the process of an atom or molecule gaining electrons, leading to a decrease in its oxidation state. Oxidation and reduction always occur together in a redox reaction.
4. How are redox reactions important in daily life?
Ans. Redox reactions play a crucial role in various aspects of daily life. For example, the process of respiration in living organisms involves redox reactions, where oxygen is reduced to produce energy. Rusting of iron is also a redox reaction, where iron undergoes oxidation in the presence of oxygen. Additionally, redox reactions are essential in the generation of electricity in batteries and fuel cells.
5. Can you provide an example of a redox reaction?
Ans. One example of a redox reaction is the reaction between hydrogen gas (H2) and oxygen gas (O2) to form water (H2O). In this reaction, hydrogen is oxidized to water, while oxygen is reduced. The balanced equation for this reaction is: 2H2 + O2 → 2H2O
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