Which hydrogen can the Br radical abstract the most easily?

1. a

2. b

3. c

4. d

Product obtained in above Wurtz reaction is:-
$\stackrel{Na(Dry ether)}{\to }$

(1) 

(2)
(3)        

(4) Both (1) and (2)

$\mathrm{Cl}-{\mathrm{CH}}_2-\underset{{\mathrm{CH}}_3}{\overset{{\mathrm{CH}}_3}{\underset{\left|}{\overset{\right|}{\mathrm{C}}}}}-{\mathrm{CH}}_2-{\mathrm{CH}}_2-\mathrm{Cl}+{\mathrm{I}}^{-} ---> \mathrm{Product}$
The major product of the above reaction is:-

1.$\mathrm{I}-{\mathrm{CH}}_2-\underset{{\mathrm{CH}}_3}{\overset{{\mathrm{CH}}_3}{\underset{\left|}{\overset{\right|}{\mathrm{C}}}}}-{\mathrm{CH}}_2-{\mathrm{CH}}_2-\mathrm{Cl}$

2. $\mathrm{Cl}-{\mathrm{CH}}_2-\underset{{\mathrm{CH}}_3}{\overset{{\mathrm{CH}}_3}{\underset{\left|}{\overset{\right|}{\mathrm{C}}}}}-{\mathrm{CH}}_2-{\mathrm{CH}}_2-\mathrm{I}$

3. ${\mathrm{H}}_2\mathrm{C}=\stackrel{{\mathrm{CH}}_3}{\stackrel{|}{\mathrm{C}}}-{\mathrm{CH}}_2-{\mathrm{CH}}_2=\mathrm{Cl}$

4. $\mathrm{Cl}-{\mathrm{CH}}_2-\underset{{\mathrm{CH}}_3}{\overset{{\mathrm{CH}}_3}{\underset{\left|}{\overset{\right|}{\mathrm{C}}}}}-{\mathrm{CH}}_2={\mathrm{CH}}_2$

+ NaI (1 mole) $\stackrel{\mathrm{Acetone}}{\to }$(A); Major product of this reaction is:

1. 

2. 

3. 

4. 

Which of the following alkyl halide undergo rearrangement in S_N1 reaction?

1. $\begin{array}{ccccccc}{\mathrm{CH}}_3& -& \underset{{\mathrm{CH}}_3}{\underset{|}{\stackrel{{\mathrm{CH}}_3}{\stackrel{|}{\mathrm{C}}}}}& -& \underset{\mathrm{I}}{\underset{|}{\mathrm{CH}}}& -& {\mathrm{CH}}_3\end{array}$

2.  

3.  

4. All of these

Which compound undergoes nucleophilic substitution with NaCN at the fastest rate ?

1.  

2.  

3.  

4.  

Rank the following in order of decreasing rate of solvolysis with aqueous ethanol (fastest $\to$slowest)
 

a.		b.
c.

1. b>a>c

2. a>b>c

3. b>c>a

4. a>c>b


   

Which of the following reactant will not favour S_N2 nucleophilic substitution reaction?

1. 

2. Ph-Br

3. ${\mathrm{CH}}_3-\underset{{\mathrm{CH}}_3}{\overset{{\mathrm{CH}}_3}{\underset{\left|}{\overset{\right|}{\mathrm{C}}}}}-{\mathrm{CH}}_2-\mathrm{Br}$

4. All of the above

$\stackrel{\mathrm{NBS}}{\to }$(A)$\stackrel{{\mathrm{CH}}_3\mathrm{SNa}}{\to }$(B), Product (B) is:

1.

2.  

3. 

4. None of these