A mixture of `ZnCl_(2)` and `PbCl_(2)` can be sepqrated by

Options

A. Distillation
B. Crystallization
C. Sublimation
D. Adding aceitic acid

Answer

To separate a mixture of ZnCl₂ (zinc chloride) and PbCl₂ (lead chloride), we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Properties of the Compounds**:
- ZnCl₂ is soluble in water, while PbCl₂ has limited solubility in cold water but is more soluble in hot water.

2. **Dissolve the Mixture**:
- Add water to the mixture of ZnCl₂ and PbCl₂. The ZnCl₂ will dissolve completely, while PbCl₂ will only dissolve partially.

3. **Heat the Mixture**:
- Heat the solution to increase the solubility of PbCl₂. This will allow more PbCl₂ to dissolve in the hot water.

4. **Filtration**:
- Filter the solution to separate the undissolved PbCl₂ from the dissolved ZnCl₂. The PbCl₂ will remain on the filter paper, while the ZnCl₂ will pass through into the filtrate.

5. **Crystallization**:
- To obtain pure ZnCl₂, you can evaporate the water from the filtrate. As the water evaporates, ZnCl₂ will crystallize out of the solution.

6. **Cooling the Solution**:
- If you want to recover PbCl₂, allow the solution to cool. Upon cooling, the solubility of PbCl₂ decreases, and it will crystallize out of the solution.

7. **Collect the Crystals**:
- Collect the crystals of ZnCl₂ and PbCl₂ separately from their respective solutions.

### Final Answer:
The mixture of ZnCl₂ and PbCl₂ can be separated by **crystallization**.

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