Can a double displacement reaction take place when the products are highly soluble or highly ionised?

Explanation

To determine whether a double displacement reaction can take place when the products are highly soluble or highly ionized, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Double Displacement Reactions**:
- A double displacement reaction (also known as a double replacement or ion exchange reaction) involves the exchange of ions between two compounds. The general form can be represented as:
\[
AB + CD \rightarrow AD + CB
...