Chapter 8, Problem 15STP

Interpretation Introduction

Interpretation: The technique that separates the component of a mixture having different boiling point is to be identified.

Concept introduction: The combination of two or more component in any ratio is termed as mixture. There are commonly four methods to separate the mixture of two compounds.

• Filtration
• Distillation
• Evaporation
• Chromatography

Answer to Problem 15STP

The component of a mixture having different boiling point is separated by distillation method. Therefore, option (B) is the correct option.

Explanation of Solution

Reason for correct option: The mixture of two or more liquid having different boiling point is separated by distillation process. In this process, the mixture (taken in round a bottom flask) is heated and hence the most volatile liquid (having low boiling point) converts into vapor at the lowest temperature. The so formed vapor passes through a condenser and converts back into liquid. The process is continued till the whole most volatile liquid (having low boiling point) separates out. The liquid having high boiling point (non-volatile) is remained in round bottom flask. Therefore, the technique that separates the component of a mixture having different boiling point is distillation. Therefore, option (B) is the correct option.

Conclusion

Reason for incorrect option: The component of a mixture having different boiling point is separated by distillation method. So, A, C, D and E are incorrect options.