Place these hydrocarbons in order of decreasing boiling point:


#1

Place these hydrocarbons in order of decreasing boiling point:
image

Answer:

The boiling point of hydrocarbons increases as the chain gets longer. Branched hydrocarbons have lower boiling points than unbranched ones.
From highest to lowest boiling point:

  1. paraffin
  2. hexadecane
  3. pentane (unbranched)
  4. neopentane (branched)
  5. ethane