Question

What type of chemical reaction is shown in the equation?
\[Zn(s) + CuS{O_4}(aq) \to ZnS{O_4}(aq) + Cu(s)\]
A. Combination reaction
B. Dissociation reaction
C. Displacement reaction
D. Double displacement reaction

Answer 1

Hint: In the given reaction Zinc metal is replacing the copper metal from the copper sulphate solution to form zinc sulphate solution and copper metal. Here only one element has been replaced.

Complete step by step answer:
Combination reaction: The combination reaction is defined as the reaction where two reactant compounds combine to form a new product.
The general combination reaction is shown below.
\[A + B \to C\]
Dissociation reaction: The dissociation reaction is defined as the reaction where a single reactant compound dissociates to give two or more new products.
The general dissociation reaction is shown below.
\[AB \to A + B\]
Displacement reaction: The displacement reaction is defined as the reaction where an element of a chemical compound displaces the other element of the chemical compound.
The general displacement reaction is shown below.
\[AB + C \to AC + B\]
Double displacement reaction: The double displacement is defined as the reaction where the atom of one reactant compound displaces the atom of another reactant and vice versa to form two new products.
The general displacement reaction is shown below.
\[AB + CD \to AC + BD\]
The given reaction is shown below.
\[Zn(s) + CuS{O_4}(aq) \to ZnS{O_4}(aq) + Cu(s)\]
In this reaction zinc reacts with copper sulphate to form zinc sulphate and copper.
Here, the zinc metal displaces copper from copper sulphate to form zinc sulphate and copper metal.
Thus, the given chemical reaction is an example of displacement reaction.

So, the correct answer is Option C.


Note: Displacement reaction is also known as single displacement reaction or single replacement reaction. Single displacement reaction and double displacement reaction are the part of displacement reaction.