Which represents Reimer-Tiemann reraction ?
(1)

(2)

(3)

(4)

When phenol is treated with excess bromine water, it gives:

(1) m-bromophenol

(2) o- and p-bromophenol

(3) 2,4-dibromophenol

(4) 2,4,6-tribromophenol

In the reaction, Phenol $\underset{\mathrm{DIstillation}}{\overset{\mathrm{Zn}}{\to }}$(A) $\underset{\mathrm{Conc}.<mspace\; width="1em"></mspace>{\mathrm{HNO}}_3<mspace\; width="1em"></mspace>\mathrm{at}<mspace\; width="1em"></mspace>60°\mathrm{C}}{\overset{\mathrm{Conc}.<mspace\; width="1em"></mspace>{\mathrm{H}}_2{\mathrm{SO}}_4}{\to }}$(B) $\underset{\mathrm{NaOH}\left(\mathrm{aq}\right)}{\overset{\mathrm{Zn}}{\to }}$(C)

The compounds (A),(B) and (C) are of the following:

(1) benzene, nitrobenzene and aniline

(2) benzene, dinitrobenzene and m-nitroaniline

(3) toluene, m-nitrobenzene and m-toluidine

(4) benzene, nitrobenzene and hydrazobenzene

Phenol on oxidation gives chloranil. The oxidant used is:

1. K₂S₂O₈

2. KMnO₄

3. KCIO₃ + HCl

4. none of these

A characteristic group test for phenolic gp. is:

1. Liebermann's nitroso reaction

2. coupling with diazonium salt

3. aqueous FeCl3

4. all of the above

Phenol can be converted into salicylic acid by

1. Etard's reaction

2. Kolbe's reaction

3. Phenol with CCl₄ in basic medium

4. both (2) and (3) 

Resorcinol and conc. H₂SO₄ in presence of phthalic anhydride produce a compound which is:

1. a dye                             

2. an antiseptic

3. an indicator                   

4. a detergent

Phenol is weakly acidic but does not react with NaHCO₃ like carboxylic acids hence:-

1. phenol is weaker than carbonic acid

2. phenol is stronger than carbonic acid

3. phenol is stronger than carboxylic acid

4. none of the above

An organic compound C₇H₈O is neither soluble in NaOH nor gives blue colour with FeCl₃, is:

(1) C₆H₅.CH₂OH                 

(2) ${\mathrm{C}}_6{\mathrm{H}}_4{<}_{\mathrm{OH}}^{{\mathrm{CH}}_3}$

(3) C₆H₅.OCH₃                   

(4) none of these

The electrophile involved in the above reaction is:
1. Dichloromethyl cation ($\stackrel{\oplus }{\mathrm{C}}{\mathrm{HCl}}_2$)
2. Dichlorocarbene (:CCl₂)
3. Trichloromethyl anion ($\stackrel{⊝}{\mathrm{C}}{\mathrm{Cl}}_3$)
4. Formyl cation ($\stackrel{\oplus }{\mathrm{C}}\mathrm{HO}$)