Question

A chemical reaction in which one element replaces another element in a compound can be categorized as a

Answer 1

single displacement because the two elements trade places, rather than the two cations

Answer 2

Explanation:

In a chemical reaction in which one element replaces another element in a compound is known as a single displacement reaction. As only one element has been displaced, that is why, the word "single" is used.

For example, when an iron nail is dipped into copper sulfate solution single displacement reaction occurs. As iron is more reactive than copper, that is why, copper gets displaced by iron.

The reaction equation is as follows.

        $Fe(s) + CuCl_{2}(aq) \rightarrow FeSO_{4}(aq) + Cu$

This single displacement can be observes when blue color solution of copper sulfate changes into light green color solution of iron sulfate. The copper gets deposited on the nail.