Compound (A), C₈H₉Br , gives a white precipitate when warmed with alcholic AgNO₃. Oxidation of (A) gives an acid (B), C₈H₆O₄. (B) easily forms anhydride on heating. Identify the compound (A).

1.

2.

3.

4.

Nitrobenzene on electrolytic reduction in a strongly acidic medium gives

1. Aniline         
2. p-aminophenol
3. m-nitroaniline    
4. nitrosobenzene

 $\underset{hv}{\overset{{\mathrm{SO}}_2{\mathrm{Cl}}_2}{\to }}\left(\mathrm{A}\right)\stackrel{\mathrm{NBS}}{\to }\left(\mathrm{B}\right)\stackrel{\mathrm{KSH}}{\to }\left(\mathrm{C}\right)$, Product (C) is:

, the missing reagent is:-

(1) CF₃CO₃H

(2) H₂SO₄ 

(3) LAH

(4) NaBH₄

can be differentiated by:

1. Hinsberg test                 

2. Iso-cyanide test

3. NaNO₂, HCl, then β-Naphthol     

4. NaOH

(p-ethyl phenol) (p-methyl anisole) (p-ethyl benzyl alcohol)

Above compounds can be differentiated by using the reagent:-

(a) NaOH, Tollen's reagent, FeCl3

(b) CrO3, Tollen's reagent, FeCl3,

(c) Tollen's reagent, CrO3, FeCl3

(d) Na, Tollen's reagent, FeCl3

Give test to differentiate (Bromobenzene) Ph-Br and benzyl bromide (PhCH₂Br).
(1) (i) aq. KOH (ii) Na

(2) AgNO₃

(3) KMnO₄

(4) All these

In a reaction,

A is 

1. HgSO₄/H₂SO₄

2. Cu₂Cl₂

3. H₃PO₂ and H₂O

4. H⁺/H₂O

In a set of reactions, m-bromobenzoic acid gave a product D. Identify the product D.

$\stackrel{{\mathrm{SOCl}}_2}{\to }$B$\stackrel{{\mathrm{NH}}_3}{\to }$C$\underset{{\mathrm{Br}}_2}{\overset{\mathrm{NaOH}}{\to }}\mathrm{D}$

1. 

2. 

3. 

4. 

What is the product obtained in the following reaction?