Question
Download Solution PDFBurning of coal is an example of ______.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct answer is a Combination Reaction.
Key Points
- The combustion of coal is an example of Combination Reaction.
- A combination reaction is a reaction where two or more elements or compounds combine to form a single compound. Such reactions are represented by equations of the following form: X + Y → XY.
- The combination of two or more elements to form one compound is called a combination reaction.
Additional Information
Other types of Chemical Reactions:
- Decomposition reaction:
- The opposite of a combination reaction, a complex molecule breaks down to make simpler ones. Such reactions are represented by equations of the following form: AB → A + B.
- Precipitation reaction:
- Two solutions of soluble salts are mixed resulting in an insoluble solid (precipitate) forming. Such reactions are represented by equations of the following form: A + Soluble salt B → Precipitate + soluble salt C.
- Neutralization reaction:
- An acid and a base react with each other. Generally, the product of this reaction is salt and water. Such reactions are represented by equations of the following form: Acid + Base → Salt + Water.
- Combustion reaction:
- Oxygen combines with a compound to form carbon dioxide and water. These reactions are exothermic, meaning they give off heat. Such reactions are represented by equations of the following form: A + O2 → H2O + CO2.
- Displacement reaction:
- One element takes place with another element in the compound. Such reactions are represented by equations of the following form: A + BC → AC + B.
- Double displacement reaction:
- Double displacement reactions occur when a part of two ionic compounds is exchanged and makes two new components.
- Double displacement reactions take place mostly in aqueous solutions wherein the ions precipitate and the exchange of ions takes place.
Last updated on Jul 19, 2025
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