Which of the following molecules would probably be isolated closest to the bottom of a fractionating tower at a refinery?

Question

Quizplus · Accepted Answer

The molecules with higher boiling points will condense and flow down the fractionating tower first, so the molecule with the highest boiling point in the list will be isolated closest to the bottom. Since this is a list of hydrocarbons, the boiling point primarily depends on the length of the carbon chain. Out of all the choices, molecule E (C₄₀H₈₂) has the longest carbon chain and will have the highest boiling point, making it the best choice.

Which of the Following Molecules Would Probably Be Isolated Closest