Arrange the following halides in the decreasing order of ${\mathrm{S}}_{\mathrm{N}}1$ reactivity

(I) ${\mathrm{CH}}_3{\mathrm{CH}}_2{\mathrm{CH}}_2\mathrm{Cl}$

(II) ${\mathrm{CH}}_2=\mathrm{CHCH}\left(\mathrm{Cl}\right){\mathrm{CH}}_3$

(III) ${\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{CH}\left(\mathrm{Cl}\right){\mathrm{CH}}_3$

1. I>II>III                            2. II>I>III

3. II>III>I                            4. III>II>I

Arrange the following compouds in the order of leaving group ability

1. I > II > III > IV

2. IV > III > I > II

3. III > II > I > IV

4. II > III > IV > I

Which of the following alkyl halide undergo rearrangement in SN1 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

$\underset{{\mathrm{S}}_{\mathrm{N}}2 \mathrm{conditions}}{\overset{\mathrm{LiBr}}{\to }}Major product$

The product X is :-

1.         2. 

3.            4.

Anisole$\underset{\mathrm{reflux}}{\overset{\mathrm{excess} \mathrm{HI} (\mathrm{conc}.)}{\to }}$Product

1. 

2. 

3. 

4. 

\(HC\equiv CNa \ + \ Cl-CH_{2}-CH_{2}-CH_{2}-I \ \rightarrow \ (A) \)
The major product (A) in the above reaction is :

1. H-C$\equiv$C-CH₂-CH₂-CH₂-I

2. CH₂=CH-CH₂-I

3. H-C$\equiv$C-CH₂-CH₂-CH₂-Cl

4. CH₂=CH-CH₂-Cl

What is the major product (A) in the following reaction?

1.		2.
3.		4.

$\underset{\mathrm{EtOH},∆}{\overset{\mathrm{KOH}}{\to }}\underset{\left(major\right)}{\left(A\right)}$

Product (A) is:

1.

2.

3.

4.

The major product of the following reaction is-

1. 

2. 

3. 

4. 

1-2-dichloro ethane + NaSCH₂CH₂SNa $\to$ P (C₄H₈S₂) 

Unknown product (p) of the above reaction is:

1. 

2. 

3. $\mathrm{H}-\mathrm{S}-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}=\mathrm{CH}-\mathrm{S}-\mathrm{H}$

4. $\mathrm{H}-\mathrm{CH}=\mathrm{CH}-{\mathrm{CH}}_2-\mathrm{S}-\mathrm{H}$