Easy
What is the electromeric effect?
- A$A$ temporary effect involving the complete transfer of $\pi$ electrons.
- B$A$ permanent effect involving the displacement of $\sigma$ electrons.
- CThe migration of lone pair electrons in a conjugated system.
- DThe inductive effect caused by electronegativity differences.
Explore More
Similar Questions
Mesomeric effect involves delocalisation of
Arrange the following in the increasing order of stability:
$(a) \ CH_3CH=CH-CHO$
$(b) \ CH_3-CH^+-CH=C(O^-)H$
$(c) \ ^+CH_2-CH=CH-CHO$
$(a) \ CH_3CH=CH-CHO$
$(b) \ CH_3-CH^+-CH=C(O^-)H$
$(c) \ ^+CH_2-CH=CH-CHO$
Easy
View SolutionWhich type of the overlap of orbitals is involved in hyperconjugation?
Medium
View SolutionWhich of the following orders of rotation barrier about the $C=C$ bond,as indicated in the structures below,is correct?
$(I)$ $CH_2=CH_2$
$(II)$ $CH_3O-CH=CH_2$
$(III)$ $CH_3O-CH=CH-COOEt$
$(I)$ $CH_2=CH_2$
$(II)$ $CH_3O-CH=CH_2$
$(III)$ $CH_3O-CH=CH-COOEt$
Medium
View SolutionWhat is the difference between the mesomeric effect and the resonance effect?
Easy
View SolutionVedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo