Question

The boiling points of three saturated hydrocarbons A, B and C are $-162°C,-42.2°C$ and$-0.5°C$ respectively. Which of these three hydrocarbons would have the maximum number of carbon atoms in its molecule?

Answer 1

The hydrocarbon which will have the maximum number of carbon atoms is:

1. The boiling point of a compound is the temperature at which its state changes from liquid to gas.
2. The molecular mass of a hydrocarbon and the boiling point are directly proportional.
3. As the molecular weight increases, the B.Pt also increases. A huge molecular weight means that the hydrocarbon will have a greater number of carbons.
4. The saturated hydrocarbon C will have the maximum number of carbon atoms as its boiling point is the highest, i.e., $-0.5°C$.