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${<}_{{\mathrm{NH}}_2}^{\mathrm{Cl}}$

Chlorobenzene reacts with Mg in dry ether to give a compound (A) which further reacts with ethanol to yield                                                                                                       

1. phenol                           2. benzene

3. ethyl benzene                 4. phenyl ether

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

Ethyl chloride is converted into diethyl ether by                                                  

1. Wurtz reaction                           2. Grignard reaction

3. Perkin's reaction                         4. Williamson's synthesis

The alkyl halide is converted into an alcohol by                                    

1. addition                       2. substitution

3. dehydrohalogenation    4. elimination

Addition of Br₂ on cis-butene-2 gives:

1. a racemic mixture of 2,3-dibromobutane

2. meso form of 2,3-dibromobutane

3. dextro form of 2,3-dibromobutane

4. laevo form of 2,3-dibromobutane 

The number of different substitution products possible when ethane is allowed to react with bromine in sunlight are:

1. 9           2. 6

3. 8           4. 5

 , Cl obtained by chlorination of n-butane, will be                

(a) meso form              (b) racemic mixture

(c) d-form                 (d) l-form

In ${\mathrm{S}}_{{\mathrm{N}}^2}$ reactions, the correct order of reactivity for the following compounds : ${\mathrm{CH}}_3\mathrm{Cl}$, ${\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{Cl}$, ${\left({\mathrm{CH}}_3\right)}_2\mathrm{CHCl}$ and ${\left({\mathrm{CH}}_3\right)}_3\mathrm{CCl}$ is :

1. ${\mathrm{CH}}_3\mathrm{Cl}$>${\left({\mathrm{CH}}_3\right)}_2\mathrm{CHCl}$>${\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{Cl}$>${\left({\mathrm{CH}}_3\right)}_3\mathrm{CCl}$

2. ${\mathrm{CH}}_3\mathrm{Cl}$>${\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{Cl}$>${\left({\mathrm{CH}}_3\right)}_2\mathrm{CHCl}$>${\left({\mathrm{CH}}_3\right)}_3\mathrm{CCl}$

3. ${\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{Cl}$>${\mathrm{CH}}_3\mathrm{Cl}$>${\left({\mathrm{CH}}_3\right)}_2\mathrm{CHCl}$>${\left({\mathrm{CH}}_3\right)}_3\mathrm{CCl}$

4. ${\left({\mathrm{CH}}_3\right)}_2\mathrm{CHCl}$>${\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{Cl}$>${\mathrm{CH}}_3\mathrm{Cl}$>${\left({\mathrm{CH}}_3\right)}_3\mathrm{CCl}$

Action of RMgX with vinyl chloride gives:

1. alkane                                  2. alkyne

3. alkene                                  4. all of these