Some meta-directing substituents in aromatic substitution are given.
Most deactivating group among the following is:
1. –SO3H
2. –COOH
3. –NO2
4. –C≡N
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 |
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
Which one of the following is most reactive towards electrophilic attack?
1. | 2. | ||
3. | 4. |