`AlCl_(3)+Na_(3)PO_(4) to AlPO_(4) darr`

Options

A. For coloured ppt./Black ppt
B. For coloured solution.
C. for clear/colourless solution
D. For white ppt.

Answer

To solve the question regarding the reaction between AlCl₃ and Na₃PO₄, we will analyze the reactants and the product to determine the characteristics of the resulting compound.

### Step-by-Step Solution:

1. **Identify the Reactants**:
The reactants in the reaction are Aluminum Chloride (AlCl₃) and Sodium Phosphate (Na₃PO₄).

2. **Write the Reaction**:
The reaction can be written as:
\[ \text{AlCl}_3 + \text{Na}_3\text{PO}_4 \rightarrow \text{AlPO}_4 + \text{NaCl} \]
Here, Aluminum Phosphate (AlPO₄) is formed along with Sodium Chloride (NaCl).

3. **Determine the Nature of the Product**:
AlPO₄ is known to be a compound that can precipitate out of solution. The presence of a downward arrow in the reaction indicates that a precipitate is formed.

4. **Identify the Color of the Precipitate**:
Aluminum Phosphate (AlPO₄) is known to be a white solid. Therefore, when it precipitates, it will appear as a white precipitate.

5. **Eliminate Other Options**:
Since we established that a precipitate is formed, we can eliminate any options that suggest a colored solution or clear solution. The only options left are those that indicate a precipitate.

6. **Final Conclusion**:
Based on the analysis, the reaction between AlCl₃ and Na₃PO₄ results in the formation of a white precipitate of AlPO₄.

### Answer:
The reaction will form a **white precipitate**.

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