Year: 2018
Topic: Organic Chemistry – Some Basic Principles and Techniques
Time :
1.
Which of the following is correct with respect to -1 effect of yje substituents? (R = alkyl)
(1). -NR
2
> -OR > -F
(2). -NH
2
> _OR > -F
(3). -NR
2
< -OR < -F
(4). -NH
2
< _OR < -F