Question

What is meant by decomposition reaction??

Answer 1

Answer:

Decomposition reaction:

When a single  compound split into two or more produce two or more

element then it is known as decomposition reaction.

For example:

In the present of sunlight Silver chloride get separate into their ions.

Chemically :  

AgCl   = > Ag⁺   + Cl⁻

Type of Decomposition reaction :  

Thermal :

When compound split by heat:

e.g.  

CaCO₃   =  >  CaO  +  CO₂     [ Heat ]  

Photoelectric :

When compound split due to presence of sun light:

e.g.

H₂O + CO₂  = >  C₆H₁₂O₆  + O₂     [ Sunlight  ]  

Electrolytic:

When compound split carried out by electricity:

e.g.

H₂O  =  >  H⁺   +   OH⁻

Answer 2

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A decomposition reaction can be defined as a type of chemical reaction in which under suitable conditions, one single compound splits into multiple simpler substances.

General Reaction mechanism

AB -> A + B