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A hydrogen bond is the attractive interaction of a hydrogen atom with an electronegative atom, such as nitrogen, oxygen or fluorine, that comes from another molecule or chemical group. The hydrogen must be covalently bonded to another electronegative atom to create the bond. These bonds canoccur between molecules (intermolecularly), or within different parts of a single molecule (intramolecularly).[2] The hydrogen bond (5 to 30 kJ/mole) is stronger than a van der Waals interaction, but weaker than covalent or ionic bonds. This type of bond occurs in both inorganic molecules such as water and organic molecules such as DNA.

Intermolecular hydrogen bonding is responsible for the high boiling point of water (100 °C) compared to the other group 16 hydrides that have no hydrogen bonds. Intramolecular hydrogen bonding is partly responsible for the secondary, tertiary, and quaternary structures of proteins and nucleic acids. It also plays an important role in the structure of polymers, both synthetic and natural.

A task group formed by IUPAC has come up with a modern definition of hydrogen bonding in 2011.

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What causes an atom to form a hydrogen bond?

A hydrogen bond is a weak bond formed between two molecules or atoms. It is caused by an atom of hydrogen being attracted to spare electron pairs on a neighbouring atom.


What type of bonding HF is?

HF has a polar covalent bond. The electronegativity difference between hydrogen and fluorine causes the electrons to be unequally shared, leading to a polar bond where fluorine is partially negative and hydrogen is partially positive.


What is the difference between a hydrogen bond acceptor and a hydrogen bond donor?

A hydrogen bond acceptor is a molecule that can accept a hydrogen bond by having a lone pair of electrons available to form a bond with a hydrogen atom. A hydrogen bond donor is a molecule that can donate a hydrogen atom with a slightly positive charge to form a bond with a hydrogen bond acceptor. In simple terms, a hydrogen bond acceptor receives a hydrogen bond, while a hydrogen bond donor gives a hydrogen bond.


What is the difference between a hydrogen bond donor and acceptor?

A hydrogen bond donor is a molecule that can donate a hydrogen atom to form a hydrogen bond, while a hydrogen bond acceptor is a molecule that can accept a hydrogen atom to form a hydrogen bond. In simpler terms, a donor gives a hydrogen atom, and an acceptor receives it to create a bond.


Can an extreme hydrogen bond donor only react with an extreme hydrogen bond acceptor?

Yes, an extreme hydrogen bond donor can only react with an extreme hydrogen bond acceptor.


What is the type of bond that attracts an oxygen and hydrogen molecule?

A hydrogen bond is the type of bond that attracts an oxygen and hydrogen molecule. In a hydrogen bond, the hydrogen atom from one molecule is attracted to the electronegative oxygen atom of another molecule.


Is a peptide bond the same as a hydrogen bond?

No, a peptide bond is not the same as a hydrogen bond. A peptide bond is a covalent bond that links amino acids in a protein chain, while a hydrogen bond is a weaker bond between hydrogen atoms and electronegative atoms like oxygen or nitrogen.


A type of weak chemical bond formed when the partially positive hydrogen atom in one molecule is attracted the partially negative atom of a neighboring molecule?

A hydrogen bond.


Is a hydrogen bond is stonger than an ionic bond?

No, an ionic bond is considerably stronger than a hydrogen bond.


Is C and H in methane CH4 an example of a hydrogen bond?

No, the bond between carbon and hydrogen in methane (CH₄) is a covalent bond, not a hydrogen bond. A hydrogen bond is a type of intermolecular force that occurs between a hydrogen atom bonded to a highly electronegative atom (like oxygen or nitrogen) and a neighboring electronegative atom.


When hydrogen atoms are kept in water then type of bond between water and hydrogen?

hydrogen bond.


Is salts hydrogen bonded?

Salt has an ionic bond, not a hydrogen bond.