Explain type of decomposition reaction with example?

Question

Answer

There are three types of decomposition reaction they are:
1) Thermal decomposition : When a decomposition reaction is carried out by heating, it is called thermal decomposition reaction.
Example : CaCO3----> CaO + CO2

2) Photochemical decomposition : If the energy of sunlight is used to carry out the decomposition reaction, it is called photochemical decomposition.
Example: 2H2O2----> 2H2O + O2

3) Electrolytic decomposition : If the electric current is used to carry out decomposition reaction. It is called electrolytic decomposition.
Example : 2H2O ----> 2H2 + O2

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Answer

There are three types of decomposition reaction:-
1) Thermal Decompression :- these reactions use the energy in the form of heat for decomposition of the reactant.
eg:- Feso4 -----> Fe2O3 + SO2 + SO3
2) Electrolysis :- These reactions involve the use of electrical energy for the Decomposition of the reactant molecules.
eg:- 2NaCl(l)----->2Na(s)+ Cl2(g)
3) Photolysis or photochemical decomposition:-
These reactions involve the use of light energy for the purpose of decomposition .
eg:- 2AgBr(s)---->2Ag(s) + Br2(g)

Answer

A decomposition reaction is a type of chemical reaction in which a single compound breaks down into two or more elements or new compounds. These reactions often involve an energy source such as light heat or electricity that breaks apart the bonds of compunds.

Types of decomposition reactions :

Thermal decomposition reaction :Thermal decomposition, or thermolysis, is a chemical decomposition caused by heat. The decomposition temperature of a substance is the temperature at which the substance chemically decomposes. E.g, Calcium carbonate decomposes into calcium oxide and carbon dioxide when heated.
Electrolytic decomposition reaction :Imeans breaking of compounds in ions when electricity is passed in a solution.Water cannot be dissociated easily by supplying but when electricity it can dissociated into its elements.E.g, Water decomposes into hydrogen and oxygen in the presence of an electric current.
Photo decomposition reaction :Photo decomposition or photo chemical reactions is the process of decomposing into its respective constituents.E.g, Silver bromide decomposes into silver and chlorine in the presence of sunlight.

Answer

Types of Decomposition Reaction

Introduction

A decomposition reaction is a type of chemical reaction that involves the breakdown of a compound into simpler components. Decomposition reactions are the opposite of synthesis reactions, which involve the combination of two or more components to form a more complex compound.

Thermal Decomposition

Thermal decomposition is a type of decomposition reaction in which a compound is broken down into simpler components by the application of heat. For example, when calcium carbonate (CaCO3) is heated, it decomposes into calcium oxide (CaO) and carbon dioxide (CO2):

CaCO3(s) → CaO(s) + CO2(g)

Electrolytic Decomposition

Electrolytic decomposition is a type of decomposition reaction that occurs when an electric current is passed through a compound that is dissolved in water. This type of reaction is used in the process of electrolysis, which is used to extract metals from their ores. For example, when an electric current is passed through molten sodium chloride (NaCl), it decomposes into sodium metal (Na) and chlorine gas (Cl2):

2NaCl(l) → 2Na(l) + Cl2(g)

Photochemical Decomposition

Photochemical decomposition is a type of decomposition reaction that is triggered by exposure to light. For example, when chlorine gas (Cl2) is exposed to ultraviolet light, it decomposes into chlorine atoms (Cl):

Cl2(g) + hv → 2Cl(g)

Biological Decomposition

Biological decomposition is a type of decomposition reaction that occurs naturally in living organisms. This type of reaction is used in the process of digestion, in which complex organic compounds are broken down into simpler components that can be used by the body. For example, when carbohydrates are broken down during digestion, they are decomposed into simple sugars such as glucose:

C6H12O6 → 2C3H6O3

Conclusion

In conclusion, decomposition reactions are an important type of chemical reaction that involves the breakdown of a compound into its simpler components. There are several different types of decomposition reactions, including thermal, electrolytic, photochemical, and biological decomposition. These reactions occur naturally in living organisms and are also used in a variety of industrial processes.

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