What products are formed when the following compound is treated with Br₂ in the presence of FeBr₃?                                                                            

1. 

2. 

3. 

4. 

  
The product X in the above mentioned reaction is:

1.		2.
3.		4.

${\mathrm{CH}}_3-\mathrm{C}\equiv \mathrm{CH}\underset{1\% {\mathrm{HgSO}}_4}{\overset{40\% {\mathrm{H}}_2{\mathrm{SO}}_4}{\to }}\mathrm{A}\stackrel{\mathrm{Isomerisation}}{\to }{\mathrm{CH}}_3-\underset{\mathrm{O}}{\underset{\left|\right|}{\mathrm{C}}}-{\mathrm{CH}}_3$

Structure of ‘A’ and type of isomerism in the above reaction are respectively.

Four structures are given in options (i) to (iv). Examine them and select the aromatic structures.

1.  

2.  

3.  

4.  

Chlorine with propene at 400$°$C, gives-       

1. Polyvinyl chloride                   

2. Allyl chloride  

3. 1-chloropropene   

4. 1,2-dichloroethane

In Friedel-Craft's alkylation, besides AlCl₃, the other reactants are                             

1. C₆H₆ + NH₃

2. C₆H₆ + CH₄

3. C₆H₆ + CH₃Cl

4. C₆H₆ + CH₃COCl

CH₃-C$\equiv$C-H$\stackrel{{\mathrm{CH}}_3\mathrm{MgBr}}{\to }$CH₄ + (A)$\underset{\left(\mathrm{ii}\right) {\mathrm{H}}_2\mathrm{O}/{\mathrm{H}}^{+}}{\overset{\left(\mathrm{i}\right) {\mathrm{CO}}_2}{\to }}$(B); (B) will be

1. H₃C-CH₂-CH₂-COOH                                2. CH₃-C$\equiv$C-CH₃

3. H₃C-C$\equiv$C-COOH                                     4. H₃C-CH=CH-COOH

3-hexyne can be converted to trans-3-hexene by the action of:

1. ${\mathrm{H}}_2$ - Pd/ ${\mathrm{BaSO}}_4$                       2. Li-Liq. ${\mathrm{NH}}_3$

3. ${\mathrm{H}}_2$ - Pt ${\mathrm{O}}_2$                                4. ${\mathrm{NaBH}}_4$

The reaction of toluene with ${\mathrm{Cl}}_2$ in the presence of ${\mathrm{FeCl}}_3$ gives 'X' and reaction in presence of light gives 'Y'. Thus, 'X' and  'Y' are:

1. X = Benzal chloride, Y= o-chlorotoluene

2. X = m-Chlorotoluene, Y= p-Chlorotoluene

3. X = o and p-Chlorotoluene, Y = Trichloromethyl benzene

4. X = Benzal chloride, Y = m-Chlorotoluene