Question

types of chemical reactions

Answer 1

Precipitation, or double-replacement reaction.
Acid-base, or neutralization reaction.
Oxidation-Reduction (Redox) Reactions.
Combustion Reaction.
Synthesis Reactions.
Decomposition Reactions.
Single Replacement Reactions

Answer 2

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There are total 9 types of the chemical reactions.
They are named as follows :-

1. Combination reaction

When 2 or more reactants combine in a reaction to form a single product, it is called as Combination reaction.

Example
2Mg + O2 ==> 2MgO

2. Decomposition reaction

The chemical reactions in which two or more products are formed from a single reactant is called a decomposition reaction.

Example
CaCO3 ==> CaO + CO2

3. Displacement reaction

The reaction in which the place of ion of a less reactive element in a compound is taken by another more reactive element by formation of its own Ion is called a displacement reaction.

Example
CuSO4 + Zn ==> ZnSO4 + Cu

4. Double Displacement reaction

The reactions in which the ion in the reactants are exchanged to form a precipitate are called double displacement reactions .

Example
AgNO3 + NaCl ==> AgCl + NaNO3

5. Endothermic Reaction

The chemical reactions which are accompanied by absorption of heat are called endothermic reactions.

Example
CaCO3 + Heat ==> CaO + CO2

6. Exothermic reaction

The chemical reactions which are accompanied by evolution of heat are called Exothermic reaction.

Example
CaO + H2O ==> Ca(OH)2 + Heat

7. Reduction Reaction

The chemical reaction in which hydrogen is gained and oxygen is losed is called as Reduction Reaction.

Example
C + 2H2 ==> CH4

8. Oxidation Reaction

The chemical reaction in which a reactant combines with oxygen or loses hydrogen is called as Oxidation Reaction.

Example
MgH2 ==> Mg + H2

9. Redox Reaction

The chemical reaction in which both reduction and oxidation reaction takes place simultaneously is called Redox Reaction.

Example
CuO + H2 ==> Cu + H2O

These are the types of reaction.

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