ANSWER
Single displacement reaction ---- Option A
EXPLANATION
Given that;
[tex]\text{ 2AlCl}_{3(aq)}\text{ }+\text{ 3Br}_{2(l)}\text{ }\rightarrow\text{ 2AlBr}_{3(aq)}+3Cl_{2(aq)}[/tex]
In the reaction above, Chlorine displaced bromine, this is possible because chlorine is more reactive than bromine.
The above reaction is an example of a single displacement reaction.
Single displacement reaction is a type of reaction in which an element displaces another element in the compound to produce a new compound and the displaced element.
Hence, the correct answer is option A
