The use of CaCl2 and PCl5. in the process of crystallization is as a
Correct answer: C. drying agent
- A. reducing agent
- B. oxidizing agent
- C. drying agent
- D. coloring agent
Explanation
rying agent in crystallization (option C):CaCl2 and PCl5: These compounds are known for their hygroscopic properties, meaning they have a strong affinity for water. When added to a solution or used in the crystallization process, they act as drying agents by effectively absorbing moisture from the solvent or solution.
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About Experimental Techniques in Chemistry
Separation methods are selected according to differences in solubility, particle size, volatility and sublimation behaviour. Filtration and crystallisation separate insoluble or dissolved solids, sublimation isolates suitable volatile solids, distillation separates liquids by boiling point, and solvent extraction transfers a substance between immiscible solvents.
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