Types of chemical reaction

Combination Reaction is reaction when single product is formed from the combination of two or more reactants. For Example-

Reactions can be exothermic as well as endothermic.
Exothermic reaction release heats and raises the temperature of the surroundings. For Example, Respiration is an example of exothermic reaction.
Endothermic reaction involved the absorption of the heat and thus it cools the surrounding. The decomposition of dead organic material is an endothermic reaction.

(a) Decomposition Reaction is type of reaction which involves breakdown of single reactant into simpler products. Decomposition of silver chloride into silver and chlorine in presence of sunlight is an example of decomposition reaction.

(b) Displacement Reaction is a reaction in which more reactive element will displaces the less reactive element.

(c) Double Displacement Reaction is a type of reaction in which cations and anions in the reactants switch the places to form new products.


(d) Redox Reaction is also known as Oxidation-reduction Reaction. In this type of reaction, transfer of electrons occurs between the two species. Oxidation is defined as addition of oxygen or removal of hydrogen. Reduction is defined as removal of oxygen or addition of hydrogen. Oxidizing agent is the one which gains the electrons and is reduced in a chemical reaction. Reducing agent is oxidized in a chemical reaction and it loses the electrons. Fluorine is the strongest oxidizing agent. Formic acid is a reducing agent.