Catalytic Or Non-Catalytic Reactions

Chemical reaction simply define as a reaction in which a substance (or a compound) is converted into a new one with different property. In a reaction, the substance (or a compound) which is converted into new substance (or changes their state) is called 'Reactant' and a newly formed substance is called 'Product'.  
A chemical reaction is usually written by placing an arrow symbol between the reactants and the products. For example, if A and B are two reactants in a chemical reaction while C and D are two products, then this reaction can be represented as;
                 A  +  B        ➝       C  +  D 
             (Reactants)           (Products) 

In this article, we will learn about catalytic and not-catalytic reactions with the help of various examples.

Types Of Reactions 
Based on the catalyst present in the reaction, these reactions are two types namely;
(a) Catalytic Reaction
(b) Non-catalytic Reaction

CATALYTIC REACTION /CATALYSIS
A reaction in which a catalyst is used to alter the rate of chemical reaction, is known as a catalytic reaction. A catalyst is a substance which is added to the reaction to increase the rate of reaction without getting consumed during the reaction and this phenomenon is known as a catalysis.
For Example
            2SO₂ + O₂ + NO(as catalyst) ➝ 2SO₃ According to the phase of the reactant, product and catalyst, these reactions are further categorize into two types of reaction and these are- homogeneous catalytic reaction (all are in a single phase or in same phase) and heterogeneous catalytic reaction (all reactants in different phases). 

NON-CATALYTIC REACTION
A chemical reaction which is completed and forming new product without using any influencing material (catalyst) is called as non-catalytic reaction. It can also be divided into two type based on phases present like homogeneous and non-homogeneous reaction. 
For Example
            •   CaCO₃ ➝ CaO + CO₂
            •   H₂ + Br₂ ➝ 2HBr

Difference Between Catalytic And Non-Catalytic Reactions
A reaction in which a catalyst is used to increase the rate of chemical reaction is called catalytic reaction whereas a chemical reaction in which a catalyst doesn't involve in the progress of reaction is called non-catalytic reactions. 
Vs
A catalyst is a substance which is added to the reaction to increase the rate of reaction without getting consumed during the reaction and this phenomenon is known as a catalysis.


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