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» <html><body><p>Fractional distillation, <a href="https://interviewquestions.tuteehub.com/tag/isohexane-2751561" style="font-weight:bold;" target="_blank" title="Click to know more about ISOHEXANE">ISOHEXANE</a><br/>Simple distillation, 3-methylpentane<br/>Fractional distillation, 3-methylpentane<br/>Simple distillation, isohexane</p>Solution :When the difference between the B.P of the two liquids is <a href="https://interviewquestions.tuteehub.com/tag/less-1071906" style="font-weight:bold;" target="_blank" title="Click to know more about LESS">LESS</a> than around `40^(@)<a href="https://interviewquestions.tuteehub.com/tag/c-7168" style="font-weight:bold;" target="_blank" title="Click to know more about C">C</a>`, 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 <a href="https://interviewquestions.tuteehub.com/tag/comes-2017383" style="font-weight:bold;" target="_blank" title="Click to know more about COMES">COMES</a> out first.</body></html>