Which of the following compounds will form hydrogen bonds with a solvent such as ethanol? Check all that apply 1) #CH_3 CH_2 O CH_2 CH_2 OH# 2) #CH_3 CH_2 CH_2 CH_2 BR# 3) #CH_3 CH_2 CH_2 NH CH_3# 4) #CH_3 CH_2 CH_2 COOH# 5) #CH_3 CH_2 CH_2 CH_2 F#

Question

1) #CH_3 CH_2 O CH_2 CH_2 OH#
2) #CH_3 CH_2 CH_2 CH_2 BR#
3) #CH_3 CH_2 CH_2 NH CH_3#
4) #CH_3 CH_2 CH_2 COOH#

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Answer 1 · 2018-01-08T09:10:35

All but #"number 2"#

So which are the molecules with polar functionality....? Clearly, #1# is an hydroxyl ether, and #4# is a carboxylic acid....and #3# is an amine....

I am willing to bet that #2# would also have some solubility in ethanol. You would not know until you have done the experiment.