Question

A decomposition reaction is the opposite of a combination reaction . Explain with the help of an example

Answer 1

yeah it is a true statement.
combination reaction means two reactants give one product. for ex=2H2+O2=2H2O
and decomposition reaction is one reactant split and give two product. for ex=2H2O=H2O2
hence we say that decomposition is opposite of combination reaction

Answer 2

Answer:

Yeah it is true ,A decomposition reaction is the opposite of a combination reaction when a single reactant decompose into 2 or more products.. this reaction is called as decomposition reaction.

for example-

 CaCO3----------> CaO + CO2