Two different substances contain molecules of similar molar mass. However, one substance exhibits hydrogen bonding, while the other does not. Which of the following statements is true?
A. The substance with molecules that do not exhibit hydrogen bonding will have a lower vapor pressure than the substance with molecules that do not exhibit hydrogen bonding.
B. The substance with molecules that exhibit hydrogen bonding will have a higher boiling point than the substance with molecules that do not exhibit hydrogen bonding.
C. The substance that contains molecules that exhibit hydrogen bonding is non-polar.
D. Both substances will have the same viscosity.
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Answer:
B. The substance with molecules that exhibit hydrogen bonding will have a higher boiling point than the substance with molecules that do not exhibit hydrogen bonding.