In which of the following is the first resona | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) To determine the stability of resonating structures,we follow these rules:$1$. Structures with more covalent bonds are more stable.$2$. Structures

Vedclass · Accepted Answer

Vedclass · Answer

(D) To determine the stability of resonating structures,we follow these rules:$1$. Structures with more covalent bonds are more stable.$2$. Structures with complete octets for all atoms are more stable.$3$. Structures with negative charge on more electronegative atoms and positive charge on less electronegative atoms are more stable.In option $A$,structure $(I)$ is a phenoxide ion (aromatic,stable),while structure $(II)$ is a non-aromatic cyclohexadienone derivative with separated charges. Thus,$(I)$ is more stable than $(II)$.In option $B$,$(I)$ has complete octets for all atoms,whereas $(II)$ has an incomplete octet on carbon. Thus,$(I)$ is more stable than $(II)$.In option $C$,structure $(I)$ has a positive charge on a carbon atom adjacent to a double bond,while $(II)$ has a positive charge on a carbon atom that is not adjacent to the double bond in a way that allows for resonance stabilization. However,comparing the two,$(I)$ is generally considered more stable due to better conjugation. In option $D$,structure $(I)$ has the negative charge on the nitrogen atom,which is less electronegative than oxygen. Structure $(II)$ has the negative charge on the oxygen atom. Since oxygen is more electronegative than nitrogen,the structure with the negative charge on oxygen $(II)$ is more stable than the one with the negative charge on nitrogen $(I)$. Therefore,$(I)$ is less stable than $(II)$.

In which of the following is the first resonating structure less stable compared to the second one?

Similar Questions

Compare the carbon-carbon double bond rotation energy for the following compounds $A$,$B$,and $C$:

Compare the ease of carbon-carbon bond rotation across $A, B,$ and $C$.

Identify the compound in which steric inhibition of resonance is present.

Which of the following species does not exert a resonance effect?

Resonance effect is not observed in

Vedclass Test Series

Exam Paper Generator

Online Exam Module