A Hydrogen Bond is an Attraction Between A(n)____ Hydrogen Atom

Question

A hydrogen bond is an attraction between a(n)____ hydrogen atom and another atom taking part in ____.  
A) covalently bonded; the same polar covalent bond
B) ionically bonded; the same polar covalent bond
C) covalently bonded; a separate polar covalent bond
D) ionically bonded; a separate nonpolar covalent bond
E) nonpolar covalently bonded; a separate nonpolar covalent bond

Accepted Answer

A hydrogen bond is an attraction between a hydrogen atom that is covalently bonded to an electronegative atom (such as nitrogen, oxygen or fluorine) and another electron-dense atom that is participating in a separate polar covalent bond. The hydrogen bond is a result of the partial positive charge on the hydrogen atom interacting with the partial negative charge of the other atom. Therefore, option C is the correct choice.