`3AgNO_(3)+Na_(3)PO_(4) to Ag_(3)PO_(4) darr+3NaNO_(3)`

Options

A. For precipitate formation formation reaction
B. For precipitate dissolution reaction
C. For precipitate exchange reaction
D. For no reaction

Answer

To solve the question regarding the reaction between silver nitrate (AgNO₃) and sodium phosphate (Na₃PO₄) to form silver phosphate (Ag₃PO₄) and sodium nitrate (NaNO₃), we will analyze the type of reaction that occurs.

### Step-by-Step Solution:

1. **Identify the Reactants and Products**:
- Reactants: 3AgNO₃ (silver nitrate) and Na₃PO₄ (sodium phosphate).
- Products: Ag₃PO₄ (silver phosphate) and 3NaNO₃ (sodium nitrate).

2. **Write the Balanced Chemical Equation**:
- The balanced equation is:
\[ 3AgNO₃ + Na₃PO₄ \rightarrow Ag₃PO₄ \downarrow + 3NaNO₃ \]
- The downward arrow (↓) indicates that Ag₃PO₄ is a precipitate.

3. **Determine the Type of Reaction**:
- In this reaction, we start with two soluble reactants (AgNO₃ and Na₃PO₄) that do not form a precipitate initially.
- Upon reaction, Ag₃PO₄ forms as a solid precipitate, while NaNO₃ remains in solution.

4. **Classify the Reaction**:
- Since a precipitate (Ag₃PO₄) is formed from the reactants, this reaction is classified as a **precipitate formation reaction**.

5. **Conclusion**:
- The correct classification of the reaction is that it is a **precipitate formation reaction**.

### Final Answer:
The reaction \( 3AgNO₃ + Na₃PO₄ \rightarrow Ag₃PO₄ \downarrow + 3NaNO₃ \) is a **precipitate formation reaction**.

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