When CH₃CH₂CHCl₂ is treated with NaNH₂, the product formed is:                             

1. CH₃-CH=CH₂ 

2. CH₃-C$\equiv$CH

3. CH₃CH₂CH${<}_{{\mathrm{NH}}_2}^{{\mathrm{NH}}_2}$   

4. CH₃CH₂C${<}_{{\mathrm{NH}}_2}^{\mathrm{Cl}}$

R-CH₂-CCl₂-R $\stackrel{\mathrm{Reagent}}{\to }$R-C$\equiv$C-R. The reagent is

1. Na

2. HCl in H₂O

3. KOH in C₂H₅OH

4. Zn in alcohol

The alkyl halide is converted into an alcohol by:                                    

Benzene on reaction with a mixture of HNO₃ and H₂SO₄ followed by reaction of Cl₂/FeCl₃ gives:

1. 3-chloro -1 -nitrobenzene

2. 2-chloro -1 -nitrobenzene

3. 4-chloro -1 -nitrobenzene

4. a mixture of 2-chloro and 4-chloro -1 -nitrobenzene

A yellow precipitate is obtained when aqueous ${\mathrm{AgNO}}_3$ is added to a solution of the compound:

1. ${\mathrm{CCl}}_3\mathrm{CHO}$

2. ${\mathrm{CHI}}_3$

3. ${\mathrm{CHCl}}_3$ 

4. ${\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{CH}}_2\mathrm{Cl}$