Arrange the following alkanes in order of increasing boiling point, with 1 being the lowest and 5 being the highest.
1. methane
2. hexane
3. octane
4. ethane
5. decane

The compound which will have the lowest boiling point is the compound with the smallest carbon chain because it would mean that less energy is needed to break the bonds. While the compound with the highest number of chains will have the highest boiling point. Therefore, the arrangement is:

1. methane 
2. ethane
3. hexane 
4.  octane 
5. decane

This is true hope this

Ithink it's c (70)