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Two volatile liquids A and B differ in t...

Two volatile liquids A and B differ in their boiling points by 15K. The process which can be used to separate them is

A

fractional distillation

B

steam distillation

C

distillation under reduced pressure

D

simple distillation

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The correct Answer is:
To solve the question regarding the separation of two volatile liquids A and B that differ in their boiling points by 15K, we can follow these steps: ### Step-by-Step Solution: 1. **Understanding the Properties of the Liquids**: - We have two volatile liquids, A and B, with a boiling point difference of 15K. This indicates that both liquids can evaporate easily at room temperature, and their boiling points are relatively close to each other. 2. **Identifying the Separation Technique**: - The key to separating two liquids based on their boiling points is to choose the appropriate distillation method. Distillation is a technique that exploits differences in boiling points to separate components in a mixture. 3. **Evaluating the Boiling Point Difference**: - The difference in boiling points is 15K. According to distillation techniques: - If the boiling point difference is more than 30-50K, simple distillation is used. - If the boiling point difference is between 10-20K, fractional distillation is the preferred method. 4. **Choosing the Correct Method**: - Since the boiling point difference of 15K falls within the range of 10-20K, we conclude that fractional distillation is the appropriate method to separate the two volatile liquids A and B. 5. **Conclusion**: - Therefore, the process that can be used to separate the two volatile liquids A and B is **fractional distillation**.
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