When potassium iodide solution is added to a solution of lead nitrate in a testtube, a precipitate is formed.
List any two types of reaction in which this reactions can be placed.

Explanation

To answer the question regarding the reaction that occurs when potassium iodide is added to lead nitrate, we can break down the solution into clear steps.

### Step-by-Step Solution:

1. **Identify the Reactants**:
- The two reactants in this reaction are potassium iodide (KI) and lead nitrate (Pb(NO3)2).

2. **Write the Chemical Equation**:
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