Question

what molecule in the graph above has the weakest intermolecular forces?
o h₂o
o h₂te
o snh₄
o ch₄

Explanation:

Inter - molecular forces are related to boiling point. Lower boiling points indicate weaker inter - molecular forces. From the graph, substances with lower boiling points at a given molecular weight have weaker inter - molecular forces. Among the options, methane ($CH_4$) has a very low boiling point (as seen from the graph's temperature values), which means it has the weakest inter - molecular forces compared to the others.

Answer:

CH₄