From the following,identify the groups that exhibit negative resonance $(-R)$ effect when attached to a conjugated system: $(A)$ formyl,$(B)$ amino,$(C)$ alkoxy,$(D)$ cyano,$(E)$ nitro

  • A
    $A, C, E$ only
  • B
    $B, C, D$ only
  • C
    $A, D, E$ only
  • D
    $B, D, E$ only

Explore More

Similar Questions

Steric inhibition of resonance takes place in

Difficult
View Solution

In compound $(X)$,hyperconjugation is present and in $(Y)$,resonance effect is present. What are $X$ and $Y$,respectively?

Represent the three types of electron movement in organic reactions.

In which of the following molecules do all the effects namely inductive,mesomeric and hyperconjugation operate?

Difficult
View Solution

Rank the following compounds in order of increasing acidity (weakest acid first).

Difficult
View Solution

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo