Which of the following do you expect to have the strongest surface tension?
a. CH3CHSH
b. CH3CH2OH
c. CH3CH2OCH2CH3
d. CH3CH2SCH2CH3
a. CH3CHSH
b. CH3CH2OH
c. CH3CH2OCH2CH3
d. CH3CH2SCH2CH3
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b. CH3CH2OH. The O-H bond is more polar than the S-H bond, which leads to hydrogen bonding between the molecules of CH3CH2OH.