Answer:
The answer to your question is letter B.
Explanation:
Decomposition reaction: is a kind of chemical reaction where one reactant yields 2 or more products.
Redox: is a kind of chemical reaction where there is a change in the oxidation numbers of some reactants and products.
Double-displacement: is a kind of chemical reaction where two reactants interchange cations and anions.
Acid-base: in this chemical reaction an acid and a base react to yield a salt and water.
According to this information, the reaction given is:
a) it is not a decomposition reaction because it has two reactants.
b) Redox because Zn and Cu changed their oxidation numbers.
c) It is not a double-displacement reaction because "Zn" does not have an anion.
d) It is not an acid-base reaction because the products are not water and salt.
