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#

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#

1 Answer
Jan 8, 2018

All but #"number 2"#

Explanation:

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.