- 1(current)
Q. No.Which of the following meta-directing substituents is the most deactivating in aromatic substitution?
| 1. | –SO3H | 2. | –COOH |
| 3. | –NO2 | 4. | –C≡N |
Subtopic: Directive Effect of functional grp |
68%
Level 2: 60%+
AIPMT - 2013
Hints
Among cyclohexanol (I), acetic acid (II), 2, 4, 6-trinitrophenol (III) and phenol (IV) the correct order of decreasing acidic character will be:
| 1. | III>II>IV>I | 2. | II>III>I>IV |
| 3. | II>III>IV>I | 4. | III>IV>II>I |
Subtopic: Directive Effect of functional grp |
53%
Level 3: 35%-60%
AIPMT - 2010
Hints
The relative reactivities of acyl compounds towards nucleophilic substitution are in the order of:
1. Acyl chloride > Acid anhydride > Ester > Amide
2. Ester > Acyl chloride > Amide >Acid anhydride
3. Acid anhydride > Amide > Ester > Acyl chloride
4. Acyl chloride > Ester > Acid anhydride > Amide
Subtopic: Directive Effect of functional grp |
61%
Level 2: 60%+
AIPMT - 2008
Hints
Subtopic: Directive Effect of functional grp |
57%
Level 3: 35%-60%
AIPMT - 2008
Hints
- 1(current)
Q. No.
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