Question

which of the following diagrams represents a double - replacement reaction?

Explanation:

A double - replacement reaction involves the exchange of ions between two compounds. In option c, we can assume that the "ions" (represented by the colored circles) are exchanging partners. For example, if we consider the general form of a double - replacement reaction \(AB + CD
ightarrow AD+CB\). In the diagram of option c, it appears that the "partners" of the "compounds" (represented by the pairs of circles) are being exchanged.

Answer:

c