Chemistry-
General
Easy
Question
Arrange the following in order of increasing order of their stability.
I) 
II) 
III) 
IV) 
- I > III > II > IV
- IV > III > II > I
- III > II > IV > I
- IV > I > III > II
The correct answer is: IV > III > II > I
+M effect of NH2 group disperse the charge of carbocation, hence increases \the stability and –CH3 group shows +I effect so it will disperse the charge less than –NH2.
nullis triplet carbine, which have least tendency to release electron hence makes the carbocation less stable. Whereas –NO2 group shows –M effect due to which the positive charge on the carbocation increases hence stability decreases.
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