Answer:
AB + CD \rightarrow AD + CB is a replacement reaction.
Explanation:
A reaction which involves replacement of chemical species of two or more reactant molecules is known as replacement reaction.
In the reaction, , B is replaced by D and D is replaced by B. Hence, this reaction is a replacement reaction.
A synthesis reaction is a reaction in which two or more species combine to form a single product.
A decomposition reaction is a reaction in which a chemical specie decomposes or breaks to give different products.
Oxidation reaction results in a change in the oxidation state of chemical species involved in the reaction. Therefore, this reaction is not an oxidation reaction as no change in oxidation state is given
we can conclude that is a replacement reaction.
