NEET Class neet Answered
Can you please give the decrasing order of -M and +M groups
Asked by musira29rahman | 20 Aug, 2019, 01:44: PM
Expert Answer
(1) groups which donate electrons to the double bond or to a conjugated or aromatic system are said to have +R or +M effect.
-OH > -OR > -SH > -SR > -NH2 > -NHR > -NR2 > -Cl > -Br > -I
(2) groups which withdrawelectrons from the double bond or from a conjugated system towards themsilves due to resonance are said to have -R or -M effect.
=C=O > -CHO > -COOR > -CN > -NO2
Answered by Ramandeep | 20 Aug, 2019, 03:04: PM
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