Question
Download Solution PDFBurning of coal is an example of ______ reaction.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct answer is combination.
Key Points
- Burning of coal involves the chemical reaction of coal (carbon) with oxygen.
- This reaction forms carbon dioxide (CO₂) and releases energy in the form of heat and light.
- The process of burning coal is a combination reaction because it involves the combination of carbon with oxygen.
- Combination reactions are characterized by two or more substances combining to form a single product.
Additional Information
- Decomposition Reaction: A chemical reaction where a single compound breaks down into two or more simpler substances. Example: 2 H₂O → 2 H₂ + O₂.
- Displacement Reaction: A reaction in which one element displaces another element from its compound. Example: Zn + CuSO₄ → ZnSO₄ + Cu.
- Double Displacement Reaction: A reaction where the ions of two compounds exchange places in an aqueous solution to form two new compounds. Example: NaCl + AgNO₃ → NaNO₃ + AgCl.
- Coal combustion is significant for energy production but also contributes to air pollution and greenhouse gas emissions.
- Understanding chemical reactions like combustion is fundamental in fields like chemistry, environmental science, and engineering.
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