Types of Chemical Bonds
The attractive force which has the ability of holding various constituent elements like atoms, ions, molecules, etc. together in different chemical species is termed as a chemical bond. Chemical compounds are dependent on the strength of chemical bonds between its constituents. Stronger the chemical bond, more will be the stability in the chemical compounds. Hence, it can be said that bonding defines the stability of chemical compounds.
Polarizability In Organic Chemistry
Polarizability refers to the ability of an atom/molecule to distort the electron cloud of neighboring species towards itself and the process of distortion of electron cloud is known as polarization.
Coordinate Covalent Bonds
A coordinate covalent bond is also known as a dative bond, which is a type of covalent bond. It is formed between two atoms, where the two electrons required to form the bond come from the same atom resulting in a semi-polar bond. The study of coordinate covalent bond or dative bond is important to know about the special type of bonding that leads to different properties. Since covalent compounds are non-polar whereas coordinate bonds results always in polar compounds due to charge separation.
Which of the following compounds have a resonance structure?
A. PO4^3-
B. H2CO
C. CO2
D.XeF4
E. None of the above
In the formation of the chemical bond with the same or different elements, all elements tend to complete their octet configuration. It is known as Octet rule.
The octet configuration (means 8 electrons in the valence shell of the bonded atom) can be achieved by either sharing of electrons to form a covalent bond or by the complete transfer of electrons that leads to the formation of an ionic bond.
The lone pair and pi bonds on bonded atoms can be delocalized to form different resonating structures. These resonating structures stabilize the molecule. Therefore more delocalization of lone pair will increase the stability of the molecule. Resonance causes different formal charges on each bonded atom.
The resonance structure which has the most stable formal charge on bonded atoms is the most stable resonance structure.
In the given option, the compound / ion with a lone pair and pi-bond must show resonance. H2CO, CO2 and XeF4 cannot show resonance as all the bonded atoms have octet and stable.
Step by step
Solved in 5 steps with 2 images
