NEET Chemistry
Electron Displacement Effects
Low Priority
Consistency: 15%
Weightage: 3 / 20 Yrs
High-Yield Trend
2
2018 1
2016 1
2007 Questions 4 MCQs
01
PYQ 2007
easy
chemistry ID: neet-200
What is the correct sequence of acidity for the following compounds?
| 1. | CH3COOH > BrCH2COOH > ClCH2COOH > FCH2COOH |
| 2. | FCH2COOH > CH3COOH > BrCH2COOH > ClCH2COOH |
| 3. | BrCH2COOH > ClCH2COOH > FCH2COOH > CH3COOH |
| 4. | FCH2COOH > ClCH2COOH > BrCH2COOH > CH3COOH |
1
(1)
2
(2)
3
(3)
4
(4)
02
PYQ 2016
easy
chemistry ID: neet-201
In pyrroleΒ
the electron density is maximum on:
| 1. | 2 and 3 | 2. | 3 and 4 |
| 3. | 2 and 4 | 4. | 2 and 5 |
1
(1)
2
(2)
3
(3)
4
(4)
03
PYQ 2018
medium
chemistry ID: neet-201
The correct order with respect to –I effect of the substituents is:
(R = alkyl)
1. –NH2 > –OR < –F
2. –NR2 < –OR < –F
3. –NH2 > –OR > –F
4. –NR2 > –OR > –F
1
(1)
2
(2)
3
(3)
4
(4)
04
PYQ 2018
medium
chemistry ID: neet-201
The most stable carbocation among the following is:
| 1. |  ` |
2. |  |
| 3. |  |
4. |  |
1
(1)
2
(2)
3
(3)
4
(4)