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Steric inhibition of Resonance,Mesomerism,Bond energy Video Lecture | Crash Course for IIT JAM Chemistry
FAQs on Steric inhibition of Resonance,Mesomerism,Bond energy Video Lecture - Crash Course for IIT JAM Chemistry
| 1. What is steric inhibition of resonance? |  |
Ans. Steric inhibition of resonance refers to the phenomenon where the presence of bulky groups adjacent to a π-bond or a lone pair of electrons hinders the delocalization of electrons in a molecule. This occurs due to the repulsion between the bulky groups and the electrons involved in resonance, preventing the resonance stabilization from occurring effectively.
| 2. How does steric inhibition of resonance affect the stability of molecules? | |
Ans. Steric inhibition of resonance reduces the stability of molecules. It disrupts the delocalization of electrons, which is a key factor in stabilizing molecules through resonance. Without proper resonance, the distribution of electrons becomes localized, and the overall stability of the molecule decreases.
| 3. What is mesomerism? | |
Ans. Mesomerism, also known as resonance, is a phenomenon in chemistry where multiple Lewis structures, called resonance structures, can be drawn to represent a molecule or ion. These resonance structures differ only in the placement of electrons and not in the arrangement of atoms. The actual structure of the molecule is considered to be a hybrid or a combination of all the resonance structures.
| 4. How does mesomerism contribute to the stability of molecules? | |
Ans. Mesomerism or resonance contributes to the stability of molecules by delocalizing electrons and distributing the electron density more evenly. This leads to the spreading out of charges and a more stable electron configuration. The resonance stabilization energy that arises from mesomerism helps to lower the overall energy of the molecule, making it more stable.
| 5. What is bond energy? | |
Ans. Bond energy, also known as bond dissociation energy, is the amount of energy required to break a covalent bond in a molecule. It represents the strength of the bond and can be thought of as the energy needed to separate the bonded atoms completely. Bond energy is typically measured in kilojoules per mole (kJ/mol) and varies depending on the specific types of atoms involved in the bond.
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Oct 27, 2024 Last updated |
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