Which of the following statements is (or are) true?
I Hydrogen bonds occur between two hydrogen atoms.
II Hydrogen bonding occurs between a hydrogen atom and an oxygen atom within a molecule.
III Hydrogen bonding requires a molecule containing a large atom.
IV Hydrogen bonding must be overcome for water to boil.
A. IV only
B. II and IV only
C. I and III only
D. II and III only
I think that it is II and IV only. What do you think?
3 answers
II is not right.The H of one molecule partially bonds with the oxygen of an adjacent molecule. Go on google and look at pictures of the H bond.
So is it just IV?
IV is the only correct one. A hydrogen bond is the attractive force between a hydrogen atom bonded to an electronegative atom and the lone pair of electrons on another highly electronegative atom. A common misconception is that hydrogen bonding is within a molecule or between two hydrogen atoms. Water has hydrogen bonding, which gives it a higher boiling point than the other Group 6 hydrides.
1 answer