Which of the following statements about hydrogen bonds aretrue? a) they are weak

Question

Which of the following statements about hydrogen bonds aretrue? a) they are weak bonds involved in maintaining theconformation of macromolecules b) they are weak covalent bonds that are easily disrupted byheat c) they are weak bonds only formed in the presence ofwater d) they are weak bonds formed between hydrocarbons inwater e) they are weak bonds formed between nonpolar groups Which of the following statements about hydrogen bonds aretrue? a) they are weak bonds involved in maintaining theconformation of macromolecules b) they are weak covalent bonds that are easily disrupted byheat c) they are weak bonds only formed in the presence ofwater d) they are weak bonds formed between hydrocarbons inwater e) they are weak bonds formed between nonpolar groups

Explanation / Answer

A hydrogen bond is a type of attractive (dipole-dipole)interaction between an electronegative atom and a hydrogenatom bonded to another electronegativ atom. H-bonding alwaysinvolves a hydrogen atom. Hydrogen bonds can be intermolecular orintramolecular. A hydrogen bond tends to be stronger than van derwaals forces, but much weaker than covalent bonds or ionicbonds.

note: H-bond is notcovalent bond, but a type of dipole-dipole interaction.

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