Which of the following groups exhibits (+)R e | vedclass

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

Question

(A) The $(+)R$ effect (positive resonance effect) is shown by groups that donate electron density to the conjugated system through resonance.This typi

Vedclass · Accepted Answer

$-NHR$

Vedclass · Answer

(A) The $(+)R$ effect (positive resonance effect) is shown by groups that donate electron density to the conjugated system through resonance.This typically occurs when the atom directly attached to the conjugated system possesses at least one lone pair of electrons.Among the given options,the $-NHR$ group has a lone pair on the nitrogen atom,which it can donate to the conjugated system,thus exhibiting the $(+)R$ effect.The other groups ($-CN$,$-NO_2$,and $-COOR$) are electron-withdrawing groups that exhibit the $(-)R$ effect.

Which of the following groups exhibits $(+)R$ effect?

Similar Questions

Arrange the following in the increasing order of stability:
$(a) \ CH_3CH=CH-CHO$
$(b) \ CH_3-CH^+-CH=C(O^-)H$
$(c) \ ^+CH_2-CH=CH-CHO$

Which of the following groups as $X$ will decrease the $pKa$ value of the given compound?

Arrange the following compounds in decreasing order of reactivity towards $EAS$ (electrophilic aromatic substitution).

What is the order of $-I$ effect in orbitals?

Which of the following represents the polarization of electrons in acrolein?

Vedclass Test Series

Exam Paper Generator

Online Exam Module