Hydrogen bonds ...

are covalent bonds.
can form between H and N.
occur within a water molecule.
share electrons between the two bonded atoms.
All of the above.

1 answer

Hydrogen bonds are not covalent bonds and do not share electrons. Instead, they are a type of intermolecular attraction that occurs when a hydrogen atom covalently bonded to a highly electronegative atom (like nitrogen, oxygen, or fluorine) is attracted to another electronegative atom.

Based on your options:

  1. Hydrogen bonds are covalent bonds. - False
  2. Hydrogen bonds can form between H and N. - True
  3. Hydrogen bonds occur within a water molecule. - False (They occur between water molecules, not within a single water molecule.)
  4. Hydrogen bonds share electrons between the two bonded atoms. - False

Therefore, the correct answer is: can form between H and N.