Question

how many hydrogen bonds are found in a single molecule of water? options: 2, 8, 0, 4

Explanation:

A single water molecule ($H_2O$) has two hydrogen atoms. But a single water molecule doesn't form hydrogen bonds with itself in the sense of internal bonds; however, when considering the potential (or in the context of how many it can form, but the question is about a single molecule's own hydrogen bonds? Wait, no—actually, a single water molecule has 0 hydrogen bonds within itself. Wait, no, correction: A water molecule has two hydrogen atoms, and the oxygen has lone pairs. But a single water molecule, by itself, doesn't have hydrogen bonds (hydrogen bonds are intermolecular, between molecules). Wait, the question is "in a single molecule of water"—so within one $H_2O$ molecule, how many hydrogen bonds? A hydrogen bond is an intermolecular force, so within a single molecule, there are 0 hydrogen bonds. The covalent bonds are between O and H, but hydrogen bonds are between different molecules. So the answer is 0.

Answer:

0