Which is the following is a decomposition reaction

The equation that is a decomposition reaction is
PbCO3(s) ---> PbO(s) + CO2(g)
That is option D. The properties of a decomposition reaction can further be understood below.
A chemical reaction is defined as the combination of substances called reactants to form a product. The various types of chemical reaction include:
Decomposition reaction is that type of chemical reaction in which the reactant breaks down to form two or more products.
Therefore the heating of lead (II) carbonate is a decomposition reaction.
Learn more about decomposition reaction here:
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