<span>Hydrogen bonds do not
form in all molecules because hydrogen can only form these bonds with highly
electronegative atoms. It is a weak type of force that happens when a hydrogen
atom is bonded to an atom which has a high electronegativity. For water, it is present because hydrogen is bonded to oxygen which is very electronegative.</span>
They may have som bad side effects such as nausea, indigestion, vomiting etc. Also the bacteria change or adapt if not taken correctly so they are no longer affected by the antibiotic.
