Formal Charges
Formal charges have an important role in organic chemistry since this concept helps us to know whether an atom in a molecule is neutral/bears a positive or negative charge. Even if some molecules are neutral, the atoms within that molecule need not be neutral atoms.
Polarity Of Water
In simple chemical terms, polarity refers to the separation of charges in a chemical species leading into formation of two polar ends which are positively charged end and negatively charged end. Polarity in any molecule occurs due to the differences in the electronegativities of the bonded atoms. Water, as we all know has two hydrogen atoms bonded to an oxygen atom. As oxygen is more electronegative than hydrogen thus, there exists polarity in the bonds which is why water is known as a polar solvent.
Valence Bond Theory Vbt
Valence bond theory (VBT) in simple terms explains how individual atomic orbitals with an unpaired electron each, come close to each other and overlap to form a molecular orbital giving a covalent bond. It gives a quantum mechanical approach to the formation of covalent bonds with the help of wavefunctions using attractive and repulsive energies when two atoms are brought from infinity to their internuclear distance.
![**Analyzing the Lewis Structure of OF₂**
**Image Description:**
The diagram presents an incorrect Lewis structure for OF₂. In this depiction, the oxygen atom (O) is double-bonded to one fluorine atom (F) and single-bonded to another fluorine atom (F), with lone pairs depicted around the fluorine atoms.
**Description:**
a. **Reasons Why the Structure is Incorrect:**
1. **Bonding with Fluorine**: Fluorine is the most electronegative element and typically forms only single bonds. It should not form double bonds as shown in this structure.
2. **Octet Rule**: This structure does not satisfy the octet rule for oxygen. Normally, oxygen forms two bonds to complete its octet, but here it erroneously forms one double bond and one single bond with fluorine atoms.
b. **Correct Structure for OF₂:**
- The correct Lewis structure should feature the oxygen atom at the center, forming single bonds with each of the two fluorine atoms. Each fluorine atom should have three lone pairs, while the oxygen atom should have two lone pairs, ensuring that each atom satisfies the octet rule.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc9dab0f3-a260-479e-949a-3a4bbd3d0da1%2F45963d91-4ad6-4c0b-969e-82f5d83088c7%2Fsvv4sas_processed.jpeg&w=3840&q=75)
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