Find the products formed when CH₃Cl and C₂H₅Cl undergo the Wurtz reaction.

The main product A and B in the above mentioned reaction are respectively- 

1. 

2. 

3. 

4. 

Which of the following can convert 3-Hexyne into trans-3-Hexene?

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 major product in the above-mentioned reaction is:

1.
2.
3.
4.

A compound among the following that does not undergo Friedel-Craft's reaction easily is:

1. Cumene               

2.  Xylene

3. Nitrobenzene         

4. Toluene