Choose the correct statement about hydrogen bonds. They A. are stronger than covalent bonds. B. act between the H in one –OH or –NH group, and the O or N in another. C. operate within molecules. D. act between the H in one –OH or –NH group, and the H in another.
Option B. Hydrogen bond operate within molecules. The slightly positive H atom in one molecule is attracted to the adjacent slightly negative O (or N).
