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Valence Bond Theory Video Lecture | Chemistry for JEE Main & Advanced
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FAQs on Valence Bond Theory Video Lecture - Chemistry for JEE Main & Advanced
| 1. What is Valence Bond Theory? |  |
Ans. Valence Bond Theory is a theory in chemistry that describes the formation of chemical bonds in terms of the overlap of atomic orbitals. It states that when two atoms approach each other, their atomic orbitals overlap, leading to the formation of covalent bonds.
| 2. How does Valence Bond Theory explain bond formation? | |
Ans. Valence Bond Theory explains bond formation by considering the overlap of atomic orbitals. According to this theory, when two atoms come close together, their atomic orbitals interact and overlap. The overlapping orbitals create a region of increased electron density, known as a bonding orbital, which holds the shared electrons between the atoms and forms a covalent bond.
| 3. What is the significance of Valence Bond Theory in predicting molecular geometry? | |
Ans. Valence Bond Theory is significant in predicting molecular geometry as it considers the overlapping of atomic orbitals to form covalent bonds. The nature and extent of orbital overlap determine the shape of the molecule. By analyzing the types of orbitals involved in bond formation and their spatial arrangement, Valence Bond Theory helps in predicting the molecular geometry of a compound.
| 4. How does Valence Bond Theory explain the concept of hybridization? | |
Ans. Valence Bond Theory explains the concept of hybridization by proposing that atomic orbitals can mix or hybridize to form a new set of hybrid orbitals. These hybrid orbitals have different shapes and energies from the original atomic orbitals and are involved in bonding. Hybridization allows atoms to maximize the overlap of their orbitals, leading to the formation of stronger and more stable bonds.
| 5. Can Valence Bond Theory explain the magnetic properties of molecules? | |
Ans. Yes, Valence Bond Theory can explain the magnetic properties of molecules. The theory considers the concept of spin pairing, where electrons with opposite spins occupy the same orbital. In molecules, the presence of unpaired electrons in the bonding orbitals leads to paramagnetism, while the absence of unpaired electrons results in diamagnetism. By analyzing the electron configuration and the nature of bonding orbitals, Valence Bond Theory can explain the magnetic behavior of molecules.
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Nov 24, 2024 Last updated |
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