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%
From NCERT
AIPMT - 2013
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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%
From NCERT
AIPMT - 2010
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NEET 2026 - Target Batch - Vital
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Which one of the following is most reactive towards electrophilic attack?
 

1. 2.
3. 4.
Subtopic:  Directive Effect of functional grp |
 59%
From NCERT
AIPMT - 2008
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NEET 2026 - Target Batch - Vital
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