Chemistry, polymer

Hi, I didn’t understand the question

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  1. is wrong because in order to be able to break down a molecule or a compound with hydrolysis to have Oxygen in the molecule so that you can use it to add H2O. In this case, we don’t have it in the 1st one so it is canceled.
  2. I am not totally sure about this one so if anyone has a better explanation please reply! But I would say that there is only one choice as long as 1 is canceled and knowing 3 is correct.
  3. this one is correct because in order to have hydrogen bonding, we need H + H or H+ FON elements. fluorine, oxygen, nitrogen. As the other molecules does not work with the structure other than the 3rd one, this will be correct