Chemistry
Grade-10
Easy

Question

Decomposition reaction is the opposite of a reaction called-

  1. Synthesis
  2. Photosynthesis
  3. combination reaction
  4. Double-replacement

hintHint:

A decomposition reaction can be defined as a chemical reaction in which one reactant breaks down into two or more products. 

The correct answer is: combination reaction


    A decomposition reaction is the opposite of a combination reaction. 
    • In a combination reaction, two or more substances combine to form new substances releasing energy.
    • A single chemical breaks down into two or more different compounds during the decomposition reaction.
    • While two or more reactants combine to generate a single substance in a combination reaction.
    • Decomposition process is therefore referred to as the combination reaction's polar opposite.

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