CaCO3 ➡Cao + CO2 is it redox reaction

Question

CaCO3 ➡Cao + CO2 is it redox  reaction

Answer

It is not redox reaction but it is decomposition

Answer

Redox Reaction of CaCO3 to CaO and CO2

CaCO3 is a chemical compound that consists of calcium, carbon, and oxygen. It is commonly found in rocks and minerals such as limestone and marble. When heated, CaCO3 decomposes to form CaO and CO2. This decomposition is a redox reaction because it involves the transfer of electrons between the reactants and products.

What is a Redox Reaction?

A redox reaction is a chemical reaction in which one or more elements undergo a change in their oxidation state. Oxidation is the process of losing electrons, while reduction is the process of gaining electrons. Redox reactions always occur in pairs because the electron that is lost by one element is gained by another element.

How does CaCO3 Decompose?

When CaCO3 is heated, it decomposes into CaO and CO2. The reaction can be represented as:

CaCO3 ➡ CaO + CO2

The oxidation state of carbon in CaCO3 is +4, while the oxidation state of carbon in CO2 is +4. Therefore, there is no change in the oxidation state of carbon during the reaction.

The oxidation state of calcium in CaCO3 is +2, while the oxidation state of calcium in CaO is +2. Therefore, there is no change in the oxidation state of calcium during the reaction.

The oxidation state of oxygen in CaCO3 is -2, while the oxidation state of oxygen in CO2 is -2. Therefore, there is no change in the oxidation state of oxygen during the reaction.

Conclusion

The decomposition of CaCO3 to CaO and CO2 is not a redox reaction because there is no change in the oxidation state of any of the elements involved in the reaction.

Answer

No. Because oxidation states of all the components are same in reactant's as well as product's side

Answer

reduction

Answer

It is not redox reaction , in order to say a reaction is redox reaction there must be change in the oxidation number of the interacting species
here CA has +2 oxidation no. in both the lhs and the
llly there is no change oxidation no. of c which is +4
and there is also no change in the o.s of oxygen which is -2
but since the compound is broken down into two different components it is known as decomposition reaction
,; )'

Similar Class 11 Doubts

100g CaCO3 reacts with 1 litre 1 N HCl. on completion of reaction how much weight of CO2 will be obtain?

1 mole of CaCO3 is heated in 11.2 lit vessel so that equilibrium is established at 819K. If KP for CaCO3=CaO CO2 at this temperature is 2 ATM, equilibrium concentration of CO2 is?

Can you the notes of redox reaction?

How do i balance this redox reaction?CN- + MnO4- ---> CNO- + MnO2 Related: Balancing Redox Reactions using Oxidation Number Method - Redox Reactions, CBSE, Class 11, Chemistry

Top Courses for Class 11View all

Chemistry Class 11

CUET Mock Test Series

English Class 11

Chemistry Practice Tests: CUET Preparation

CUET Mock Test: Humanities Subjects 2025

Top Courses for Class 11

Top Courses for Class 11

Suggested Free Tests

Related Content

Schools

Competitive Examinations

Quick Access Links

Technical Exams