Which compound would have the lowest boiling point?
A)I
B)II
C)III
D)IV

Question

Which compound would have the lowest boiling point? 
A)I 
B)II 
C)III 
D)IV

Quizplus · Accepted Answer

I has the lowest boiling point as it is a noble gas and therefore has weak intermolecular forces of attraction. II and III are both polar compounds with hydrogen bonding, which increases their boiling points. IV and V are both nonpolar compounds, but V has a larger number of carbon atoms, which increases its boiling point due to the increased molecular weight.

Which Compound Would Have the Lowest Boiling Point