Multiple Choice
Which is the strongest type of intermolecular force present in CHCl_3 (chloroform)?
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13. Liquids, Solids & Intermolecular Forces
Intermolecular Forces
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For which of the following substances would hydrogen bonding be an important intermolecular force?
A
CH4
B
CO2
C
H2O
D
C2H6
Verified step by step guidance1
Identify the key requirement for hydrogen bonding: it occurs when hydrogen is directly bonded to highly electronegative atoms such as nitrogen (N), oxygen (O), or fluorine (F).
Examine each substance to see if it contains hydrogen atoms bonded to N, O, or F:
CH4 (methane) has hydrogen bonded to carbon, which is not electronegative enough to cause hydrogen bonding.
CO2 (carbon dioxide) has no hydrogen atoms at all, so hydrogen bonding cannot occur.
H2O (water) has hydrogen atoms bonded directly to oxygen, a highly electronegative atom, making hydrogen bonding significant.
C2H6 (ethane) has hydrogen bonded to carbon, similar to methane, so hydrogen bonding is not important here.
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