A flask contains a mixture of isohexane and 3-methylpentane. One of the liquids boils at 63^(@)C while the other boils at 60^(@)C. What is the best way to separate the two liquids and which one will be distilled out first?

A flask contains a mixture of isohexane and 3-methylpentane. One of th

1.	A flask contains a mixture of isohexane and 3-methylpentane. One of the liquids boils at 63^(@)C while the other boils at 60^(@)C. What is the best way to separate the two liquids and which one will be distilled out first?
Answer» Fractional distillation, ISOHEXANE Simple distillation, 3-methylpentane Fractional distillation, 3-methylpentane Simple distillation, isohexane Solution :When the difference between the B.P of the two liquids is LESS than around `40^(@)C`, fractional distillation is more efficient. The difference between the boiling points of isohexane and 3-methylpentane is only 3 degrees. So, fractional distillation is the best suitable method. Since, isohexane has a lower boiling point, it COMES out first.