Ionic bonds result from high electronegativity differences. a. True b. False
2 answers:
Answer: True
Explanation: An ionic bond is formed when an element completely transfers its valence electron to another element.
Electronegativity is defined as the property of an element to attract a shared pair of electron towards itself.
The element which donates the electron is known as electropositive element and the element which accepts the electrons is known as electronegative element.
This bond is formed between a electropositive metal and a electronegative non-metal
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Answer: B) an oxygen atom in a different molecule.
Explanation:
Hydrogen bonding (H-bonding) is an inter molecular force having partial ionic-covalent character.
H-bonding takes place between a hydrogen atom attached with an electronegative atom such as O, N and F and an electronegative atom such as O,N and F. They are strong forces.
Example: has hydrogen bonding between hydrogen of one molecule with oxygen atom bonded to hydrogen of different molecule.
Thus the correct option is hydrogen bonding occurs between the hydrogen atom in one molecule and an oxygen atom in a different molecule.